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- background-color
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- Значения
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- Примеры
- HTML
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- HTML Colors
- Color Names
- Background Color
- Example
- Hello World Lorem ipsum. Text Color You can set the color of text: Hello World Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Example Hello World Lorem ipsum. Ut wisi enim. Border Color You can set the color of borders: Hello World Hello World Hello World Example Hello World Hello World Hello World Color Values In HTML, colors can also be specified using RGB values, HEX values, HSL values, RGBA values, and HSLA values. The following three elements have their background color set with RGB, HEX, and HSL values: The following two elements have their background color set with RGBA and HSLA values, which add an Alpha channel to the color (here we have 50% transparency): Источник CSS Background Color – How to Change the Background Color in HTML Ilenia Magoni You have started creating your HTML page, and you want to give it some color – maybe change the color of the text or set a nice background. So how do you do that? In this article I’ll show you how you can change the background color of a page in a few different ways. How to Change the Background Color of an HTML Element You can change the background color of an HTML element using the background-color CSS property and giving it a value of a color. There are about 140 color names that you can use, like teal , hotpink , indigo and many others. Note: if you give a background-color to an element and don’t see it change, it can be a syntax error, or it can also be that the element does not have a width or height. Try to put some content in it, or give it a width and an height using the CSS properties width and height . There are actually almost 16.8 million colors that you can use. You can use all these colors using RGB values. There are also HSL colors where you have about 3.7 million colors to choose from. In the next section you will learn about all these different ways of creating colors. Different Color Notations The background-color property accepts colors as possible values. Here you will see four different notations for color values. The first will be color names, and there are around 140 keywords that you can use. This is the easiest way to choose a color as it doesn’t require understanding special notations – but it has a limited range of options. The second and third ways to name or choose colors are RGB values and hexadecimal values. In these notations, colors are identified by the amount of red, green, and blue that they contain. This comes from how a screen produces color. A screen is made of pixels, and each pixel is lighted by LEDs of three different colors, green, blue and red, that can shine at different intensities. The fourth notation is HSL colors, or Hue-Saturation-Lightness. This notation comes from Graphic Design, as it reflects a more natural way for humans to think about color: a pure color (hue), of which saturation and lightness can be varied. You can use any of these color notations to give a color to the background, but let’s see them in more details, so you can choose the one you prefer. HTML Color Names There are 16 basic colors recognised in the first version of HTML. Now there are 140+ named colors you can use. You can see all the named colors in the appendix at the end of the article. RGB Colors RGB stands for Red-Green-Blue. The colors in this format are written rgb(0,0,0) , where each value is a number between 0 and 255 representing the amount of red, green, and blue used to make each color, respectively. For example, if you have rgb(0,0,0) you get black. To get red, you write rgb(255,0,0) , where there is as much red as possible with 255 , 0 for blue, and 0 for green. You can get other variations of red with small amounts of green and/or blue, and a bit less red. For example you can get an orange red with rgb(255,69,0) or a dark red with rgb(139,0,0) . Below an example of how the color changes when you adjust two of the RGB values: the top left corner of the colored square is equal to rgb(0,0,0) , the top right is equal to rgb(0,0,255) , the bottom left corner to rgb(0,255,0) and the bottom right corner to rgb(0,255,255) . Fortunately, you don’t need to guess the numbers to get the color you want. You can find various color pickers online that let you choose the color with sliders (or other methods) and give you the RGB color value you want to use. Hexadecimal Colors Hexadecimal colors are a different way to write RGB colors. With hexadecimals you also have three numbers, one for each color, with 256 possible values. In this case, though, each color has two digits that go from 0 to F (that is, 0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , and A , B , C , D , E , F ). One single digit has 16 possible values, and two digits have 256 possible values, from 00 , to FF (255). Hexadecimal colors are written with a # in front of the value. Red is written as #FF0000 , dark red as #8B0000 , and orange red as #FF4500 , for example. You can also use color pickers to generate hexadecimal values. Hexadecimal shorthand You can write hexadecimal numbers in shorthand form, using only three digits instead of six. For example, you can write red like #F00 . This reduces the number of possible colors to just above 4,000, but it is shorter to write, and sometimes that is what is important. Each digit is in place of two identical digits, so we can’t write #8B0000 in shorthand form, as 8 and B are not identical. But we can write #800 which is equal to #880000 , pretty similar to the other dark red. And orange red can be #F40 (equal to #FF4400 ). HSL Colors HSL means Hue-Saturation-Lightness, and it is a completely different way of writing colors than what we have seen so far. HSL colors are represented with three numbers: the hue goes from 0 to 360 , and saturation and lightness from 0 to 100 . The hue determines the base color, and its value is an angle, a degree on the color wheel. In this case, red is 0 , green is 120 , blue is 240 , and 360 is again red. Saturation goes from 0 , which makes the color gray, to 100 , which shows the full color. Lightness is the amount of black or white added to the color. 0 is black, 50 is the color itself, and 100 is white. For example, you’d write red as hsl(0,100%,50%) , orange red as hsl(16,100%,50%) , and dark red as hsl(0,100%,27%) . It can be easier to find similar colors using HSL than with the other color schemes. With red and its variations you have seen that to get a darker red you can just change the lightness percentage, and mixing red with an other color is enough to change its hue value a bit. Let’s see it in action with a mixed color in hexadecimal, like orange ( #FFA500 or rgb(255,166,0) ), written in HSL as hsl(39,100%,50%) . You can get a lighter orange just by increasing the lightness. So for example you can write hsl(39,100%,65%) to get this lighter orange. With the other notations you would have needed to write rgb(255,193,77) or #FFC14D . You can also find color pickers online for HSL colors. Property name short-hand You can also set the background color using the short-hand background property. This is a more versatile property, as it is shorthand for various background properties, like background-image and background-position . When you use it with a color value it works exactly the same as background-color . Conclusion You have learned how to give a background color to your HTML elements using the background-color property and its shorthand background , and using different color notations. Now you have all the tools you need to add whatever colors you want to your web pages. Enjoy! Appendix All 140+ named colors Spelling Variations The color names containing the word «Gray» can also be written with the spelling «Grey» as shown below. Источник
- Text Color
- Hello World
- Example
- Hello World Lorem ipsum. Ut wisi enim. Border Color You can set the color of borders: Hello World Hello World Hello World Example Hello World Hello World Hello World Color Values In HTML, colors can also be specified using RGB values, HEX values, HSL values, RGBA values, and HSLA values. The following three elements have their background color set with RGB, HEX, and HSL values: The following two elements have their background color set with RGBA and HSLA values, which add an Alpha channel to the color (here we have 50% transparency): Источник CSS Background Color – How to Change the Background Color in HTML Ilenia Magoni You have started creating your HTML page, and you want to give it some color – maybe change the color of the text or set a nice background. So how do you do that? In this article I’ll show you how you can change the background color of a page in a few different ways. How to Change the Background Color of an HTML Element You can change the background color of an HTML element using the background-color CSS property and giving it a value of a color. There are about 140 color names that you can use, like teal , hotpink , indigo and many others. Note: if you give a background-color to an element and don’t see it change, it can be a syntax error, or it can also be that the element does not have a width or height. Try to put some content in it, or give it a width and an height using the CSS properties width and height . There are actually almost 16.8 million colors that you can use. You can use all these colors using RGB values. There are also HSL colors where you have about 3.7 million colors to choose from. In the next section you will learn about all these different ways of creating colors. Different Color Notations The background-color property accepts colors as possible values. Here you will see four different notations for color values. The first will be color names, and there are around 140 keywords that you can use. This is the easiest way to choose a color as it doesn’t require understanding special notations – but it has a limited range of options. The second and third ways to name or choose colors are RGB values and hexadecimal values. In these notations, colors are identified by the amount of red, green, and blue that they contain. This comes from how a screen produces color. A screen is made of pixels, and each pixel is lighted by LEDs of three different colors, green, blue and red, that can shine at different intensities. The fourth notation is HSL colors, or Hue-Saturation-Lightness. This notation comes from Graphic Design, as it reflects a more natural way for humans to think about color: a pure color (hue), of which saturation and lightness can be varied. You can use any of these color notations to give a color to the background, but let’s see them in more details, so you can choose the one you prefer. HTML Color Names There are 16 basic colors recognised in the first version of HTML. Now there are 140+ named colors you can use. You can see all the named colors in the appendix at the end of the article. RGB Colors RGB stands for Red-Green-Blue. The colors in this format are written rgb(0,0,0) , where each value is a number between 0 and 255 representing the amount of red, green, and blue used to make each color, respectively. For example, if you have rgb(0,0,0) you get black. To get red, you write rgb(255,0,0) , where there is as much red as possible with 255 , 0 for blue, and 0 for green. You can get other variations of red with small amounts of green and/or blue, and a bit less red. For example you can get an orange red with rgb(255,69,0) or a dark red with rgb(139,0,0) . Below an example of how the color changes when you adjust two of the RGB values: the top left corner of the colored square is equal to rgb(0,0,0) , the top right is equal to rgb(0,0,255) , the bottom left corner to rgb(0,255,0) and the bottom right corner to rgb(0,255,255) . Fortunately, you don’t need to guess the numbers to get the color you want. You can find various color pickers online that let you choose the color with sliders (or other methods) and give you the RGB color value you want to use. Hexadecimal Colors Hexadecimal colors are a different way to write RGB colors. With hexadecimals you also have three numbers, one for each color, with 256 possible values. In this case, though, each color has two digits that go from 0 to F (that is, 0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , and A , B , C , D , E , F ). One single digit has 16 possible values, and two digits have 256 possible values, from 00 , to FF (255). Hexadecimal colors are written with a # in front of the value. Red is written as #FF0000 , dark red as #8B0000 , and orange red as #FF4500 , for example. You can also use color pickers to generate hexadecimal values. Hexadecimal shorthand You can write hexadecimal numbers in shorthand form, using only three digits instead of six. For example, you can write red like #F00 . This reduces the number of possible colors to just above 4,000, but it is shorter to write, and sometimes that is what is important. Each digit is in place of two identical digits, so we can’t write #8B0000 in shorthand form, as 8 and B are not identical. But we can write #800 which is equal to #880000 , pretty similar to the other dark red. And orange red can be #F40 (equal to #FF4400 ). HSL Colors HSL means Hue-Saturation-Lightness, and it is a completely different way of writing colors than what we have seen so far. HSL colors are represented with three numbers: the hue goes from 0 to 360 , and saturation and lightness from 0 to 100 . The hue determines the base color, and its value is an angle, a degree on the color wheel. In this case, red is 0 , green is 120 , blue is 240 , and 360 is again red. Saturation goes from 0 , which makes the color gray, to 100 , which shows the full color. Lightness is the amount of black or white added to the color. 0 is black, 50 is the color itself, and 100 is white. For example, you’d write red as hsl(0,100%,50%) , orange red as hsl(16,100%,50%) , and dark red as hsl(0,100%,27%) . It can be easier to find similar colors using HSL than with the other color schemes. With red and its variations you have seen that to get a darker red you can just change the lightness percentage, and mixing red with an other color is enough to change its hue value a bit. Let’s see it in action with a mixed color in hexadecimal, like orange ( #FFA500 or rgb(255,166,0) ), written in HSL as hsl(39,100%,50%) . You can get a lighter orange just by increasing the lightness. So for example you can write hsl(39,100%,65%) to get this lighter orange. With the other notations you would have needed to write rgb(255,193,77) or #FFC14D . You can also find color pickers online for HSL colors. Property name short-hand You can also set the background color using the short-hand background property. This is a more versatile property, as it is shorthand for various background properties, like background-image and background-position . When you use it with a color value it works exactly the same as background-color . Conclusion You have learned how to give a background color to your HTML elements using the background-color property and its shorthand background , and using different color notations. Now you have all the tools you need to add whatever colors you want to your web pages. Enjoy! Appendix All 140+ named colors Spelling Variations The color names containing the word «Gray» can also be written with the spelling «Grey» as shown below. Источник
- Border Color
- Hello World
- Hello World
- Hello World
- Example
- Hello World Hello World Hello World Color Values In HTML, colors can also be specified using RGB values, HEX values, HSL values, RGBA values, and HSLA values. The following three elements have their background color set with RGB, HEX, and HSL values: The following two elements have their background color set with RGBA and HSLA values, which add an Alpha channel to the color (here we have 50% transparency): Источник CSS Background Color – How to Change the Background Color in HTML Ilenia Magoni You have started creating your HTML page, and you want to give it some color – maybe change the color of the text or set a nice background. So how do you do that? In this article I’ll show you how you can change the background color of a page in a few different ways. How to Change the Background Color of an HTML Element You can change the background color of an HTML element using the background-color CSS property and giving it a value of a color. There are about 140 color names that you can use, like teal , hotpink , indigo and many others. Note: if you give a background-color to an element and don’t see it change, it can be a syntax error, or it can also be that the element does not have a width or height. Try to put some content in it, or give it a width and an height using the CSS properties width and height . There are actually almost 16.8 million colors that you can use. You can use all these colors using RGB values. There are also HSL colors where you have about 3.7 million colors to choose from. In the next section you will learn about all these different ways of creating colors. Different Color Notations The background-color property accepts colors as possible values. Here you will see four different notations for color values. The first will be color names, and there are around 140 keywords that you can use. This is the easiest way to choose a color as it doesn’t require understanding special notations – but it has a limited range of options. The second and third ways to name or choose colors are RGB values and hexadecimal values. In these notations, colors are identified by the amount of red, green, and blue that they contain. This comes from how a screen produces color. A screen is made of pixels, and each pixel is lighted by LEDs of three different colors, green, blue and red, that can shine at different intensities. The fourth notation is HSL colors, or Hue-Saturation-Lightness. This notation comes from Graphic Design, as it reflects a more natural way for humans to think about color: a pure color (hue), of which saturation and lightness can be varied. You can use any of these color notations to give a color to the background, but let’s see them in more details, so you can choose the one you prefer. HTML Color Names There are 16 basic colors recognised in the first version of HTML. Now there are 140+ named colors you can use. You can see all the named colors in the appendix at the end of the article. RGB Colors RGB stands for Red-Green-Blue. The colors in this format are written rgb(0,0,0) , where each value is a number between 0 and 255 representing the amount of red, green, and blue used to make each color, respectively. For example, if you have rgb(0,0,0) you get black. To get red, you write rgb(255,0,0) , where there is as much red as possible with 255 , 0 for blue, and 0 for green. You can get other variations of red with small amounts of green and/or blue, and a bit less red. For example you can get an orange red with rgb(255,69,0) or a dark red with rgb(139,0,0) . Below an example of how the color changes when you adjust two of the RGB values: the top left corner of the colored square is equal to rgb(0,0,0) , the top right is equal to rgb(0,0,255) , the bottom left corner to rgb(0,255,0) and the bottom right corner to rgb(0,255,255) . Fortunately, you don’t need to guess the numbers to get the color you want. You can find various color pickers online that let you choose the color with sliders (or other methods) and give you the RGB color value you want to use. Hexadecimal Colors Hexadecimal colors are a different way to write RGB colors. With hexadecimals you also have three numbers, one for each color, with 256 possible values. In this case, though, each color has two digits that go from 0 to F (that is, 0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , and A , B , C , D , E , F ). One single digit has 16 possible values, and two digits have 256 possible values, from 00 , to FF (255). Hexadecimal colors are written with a # in front of the value. Red is written as #FF0000 , dark red as #8B0000 , and orange red as #FF4500 , for example. You can also use color pickers to generate hexadecimal values. Hexadecimal shorthand You can write hexadecimal numbers in shorthand form, using only three digits instead of six. For example, you can write red like #F00 . This reduces the number of possible colors to just above 4,000, but it is shorter to write, and sometimes that is what is important. Each digit is in place of two identical digits, so we can’t write #8B0000 in shorthand form, as 8 and B are not identical. But we can write #800 which is equal to #880000 , pretty similar to the other dark red. And orange red can be #F40 (equal to #FF4400 ). HSL Colors HSL means Hue-Saturation-Lightness, and it is a completely different way of writing colors than what we have seen so far. HSL colors are represented with three numbers: the hue goes from 0 to 360 , and saturation and lightness from 0 to 100 . The hue determines the base color, and its value is an angle, a degree on the color wheel. In this case, red is 0 , green is 120 , blue is 240 , and 360 is again red. Saturation goes from 0 , which makes the color gray, to 100 , which shows the full color. Lightness is the amount of black or white added to the color. 0 is black, 50 is the color itself, and 100 is white. For example, you’d write red as hsl(0,100%,50%) , orange red as hsl(16,100%,50%) , and dark red as hsl(0,100%,27%) . It can be easier to find similar colors using HSL than with the other color schemes. With red and its variations you have seen that to get a darker red you can just change the lightness percentage, and mixing red with an other color is enough to change its hue value a bit. Let’s see it in action with a mixed color in hexadecimal, like orange ( #FFA500 or rgb(255,166,0) ), written in HSL as hsl(39,100%,50%) . You can get a lighter orange just by increasing the lightness. So for example you can write hsl(39,100%,65%) to get this lighter orange. With the other notations you would have needed to write rgb(255,193,77) or #FFC14D . You can also find color pickers online for HSL colors. Property name short-hand You can also set the background color using the short-hand background property. This is a more versatile property, as it is shorthand for various background properties, like background-image and background-position . When you use it with a color value it works exactly the same as background-color . Conclusion You have learned how to give a background color to your HTML elements using the background-color property and its shorthand background , and using different color notations. Now you have all the tools you need to add whatever colors you want to your web pages. Enjoy! Appendix All 140+ named colors Spelling Variations The color names containing the word «Gray» can also be written with the spelling «Grey» as shown below. Источник
- Hello World Hello World Color Values In HTML, colors can also be specified using RGB values, HEX values, HSL values, RGBA values, and HSLA values. The following three elements have their background color set with RGB, HEX, and HSL values: The following two elements have their background color set with RGBA and HSLA values, which add an Alpha channel to the color (here we have 50% transparency): Источник CSS Background Color – How to Change the Background Color in HTML Ilenia Magoni You have started creating your HTML page, and you want to give it some color – maybe change the color of the text or set a nice background. So how do you do that? In this article I’ll show you how you can change the background color of a page in a few different ways. How to Change the Background Color of an HTML Element You can change the background color of an HTML element using the background-color CSS property and giving it a value of a color. There are about 140 color names that you can use, like teal , hotpink , indigo and many others. Note: if you give a background-color to an element and don’t see it change, it can be a syntax error, or it can also be that the element does not have a width or height. Try to put some content in it, or give it a width and an height using the CSS properties width and height . There are actually almost 16.8 million colors that you can use. You can use all these colors using RGB values. There are also HSL colors where you have about 3.7 million colors to choose from. In the next section you will learn about all these different ways of creating colors. Different Color Notations The background-color property accepts colors as possible values. Here you will see four different notations for color values. The first will be color names, and there are around 140 keywords that you can use. This is the easiest way to choose a color as it doesn’t require understanding special notations – but it has a limited range of options. The second and third ways to name or choose colors are RGB values and hexadecimal values. In these notations, colors are identified by the amount of red, green, and blue that they contain. This comes from how a screen produces color. A screen is made of pixels, and each pixel is lighted by LEDs of three different colors, green, blue and red, that can shine at different intensities. The fourth notation is HSL colors, or Hue-Saturation-Lightness. This notation comes from Graphic Design, as it reflects a more natural way for humans to think about color: a pure color (hue), of which saturation and lightness can be varied. You can use any of these color notations to give a color to the background, but let’s see them in more details, so you can choose the one you prefer. HTML Color Names There are 16 basic colors recognised in the first version of HTML. Now there are 140+ named colors you can use. You can see all the named colors in the appendix at the end of the article. RGB Colors RGB stands for Red-Green-Blue. The colors in this format are written rgb(0,0,0) , where each value is a number between 0 and 255 representing the amount of red, green, and blue used to make each color, respectively. For example, if you have rgb(0,0,0) you get black. To get red, you write rgb(255,0,0) , where there is as much red as possible with 255 , 0 for blue, and 0 for green. You can get other variations of red with small amounts of green and/or blue, and a bit less red. For example you can get an orange red with rgb(255,69,0) or a dark red with rgb(139,0,0) . Below an example of how the color changes when you adjust two of the RGB values: the top left corner of the colored square is equal to rgb(0,0,0) , the top right is equal to rgb(0,0,255) , the bottom left corner to rgb(0,255,0) and the bottom right corner to rgb(0,255,255) . Fortunately, you don’t need to guess the numbers to get the color you want. You can find various color pickers online that let you choose the color with sliders (or other methods) and give you the RGB color value you want to use. Hexadecimal Colors Hexadecimal colors are a different way to write RGB colors. With hexadecimals you also have three numbers, one for each color, with 256 possible values. In this case, though, each color has two digits that go from 0 to F (that is, 0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , and A , B , C , D , E , F ). One single digit has 16 possible values, and two digits have 256 possible values, from 00 , to FF (255). Hexadecimal colors are written with a # in front of the value. Red is written as #FF0000 , dark red as #8B0000 , and orange red as #FF4500 , for example. You can also use color pickers to generate hexadecimal values. Hexadecimal shorthand You can write hexadecimal numbers in shorthand form, using only three digits instead of six. For example, you can write red like #F00 . This reduces the number of possible colors to just above 4,000, but it is shorter to write, and sometimes that is what is important. Each digit is in place of two identical digits, so we can’t write #8B0000 in shorthand form, as 8 and B are not identical. But we can write #800 which is equal to #880000 , pretty similar to the other dark red. And orange red can be #F40 (equal to #FF4400 ). HSL Colors HSL means Hue-Saturation-Lightness, and it is a completely different way of writing colors than what we have seen so far. HSL colors are represented with three numbers: the hue goes from 0 to 360 , and saturation and lightness from 0 to 100 . The hue determines the base color, and its value is an angle, a degree on the color wheel. In this case, red is 0 , green is 120 , blue is 240 , and 360 is again red. Saturation goes from 0 , which makes the color gray, to 100 , which shows the full color. Lightness is the amount of black or white added to the color. 0 is black, 50 is the color itself, and 100 is white. For example, you’d write red as hsl(0,100%,50%) , orange red as hsl(16,100%,50%) , and dark red as hsl(0,100%,27%) . It can be easier to find similar colors using HSL than with the other color schemes. With red and its variations you have seen that to get a darker red you can just change the lightness percentage, and mixing red with an other color is enough to change its hue value a bit. Let’s see it in action with a mixed color in hexadecimal, like orange ( #FFA500 or rgb(255,166,0) ), written in HSL as hsl(39,100%,50%) . You can get a lighter orange just by increasing the lightness. So for example you can write hsl(39,100%,65%) to get this lighter orange. With the other notations you would have needed to write rgb(255,193,77) or #FFC14D . You can also find color pickers online for HSL colors. Property name short-hand You can also set the background color using the short-hand background property. This is a more versatile property, as it is shorthand for various background properties, like background-image and background-position . When you use it with a color value it works exactly the same as background-color . Conclusion You have learned how to give a background color to your HTML elements using the background-color property and its shorthand background , and using different color notations. Now you have all the tools you need to add whatever colors you want to your web pages. Enjoy! Appendix All 140+ named colors Spelling Variations The color names containing the word «Gray» can also be written with the spelling «Grey» as shown below. Источник
- Hello World Color Values In HTML, colors can also be specified using RGB values, HEX values, HSL values, RGBA values, and HSLA values. The following three elements have their background color set with RGB, HEX, and HSL values: The following two elements have their background color set with RGBA and HSLA values, which add an Alpha channel to the color (here we have 50% transparency): Источник CSS Background Color – How to Change the Background Color in HTML Ilenia Magoni You have started creating your HTML page, and you want to give it some color – maybe change the color of the text or set a nice background. So how do you do that? In this article I’ll show you how you can change the background color of a page in a few different ways. How to Change the Background Color of an HTML Element You can change the background color of an HTML element using the background-color CSS property and giving it a value of a color. There are about 140 color names that you can use, like teal , hotpink , indigo and many others. Note: if you give a background-color to an element and don’t see it change, it can be a syntax error, or it can also be that the element does not have a width or height. Try to put some content in it, or give it a width and an height using the CSS properties width and height . There are actually almost 16.8 million colors that you can use. You can use all these colors using RGB values. There are also HSL colors where you have about 3.7 million colors to choose from. In the next section you will learn about all these different ways of creating colors. Different Color Notations The background-color property accepts colors as possible values. Here you will see four different notations for color values. The first will be color names, and there are around 140 keywords that you can use. This is the easiest way to choose a color as it doesn’t require understanding special notations – but it has a limited range of options. The second and third ways to name or choose colors are RGB values and hexadecimal values. In these notations, colors are identified by the amount of red, green, and blue that they contain. This comes from how a screen produces color. A screen is made of pixels, and each pixel is lighted by LEDs of three different colors, green, blue and red, that can shine at different intensities. The fourth notation is HSL colors, or Hue-Saturation-Lightness. This notation comes from Graphic Design, as it reflects a more natural way for humans to think about color: a pure color (hue), of which saturation and lightness can be varied. You can use any of these color notations to give a color to the background, but let’s see them in more details, so you can choose the one you prefer. HTML Color Names There are 16 basic colors recognised in the first version of HTML. Now there are 140+ named colors you can use. You can see all the named colors in the appendix at the end of the article. RGB Colors RGB stands for Red-Green-Blue. The colors in this format are written rgb(0,0,0) , where each value is a number between 0 and 255 representing the amount of red, green, and blue used to make each color, respectively. For example, if you have rgb(0,0,0) you get black. To get red, you write rgb(255,0,0) , where there is as much red as possible with 255 , 0 for blue, and 0 for green. You can get other variations of red with small amounts of green and/or blue, and a bit less red. For example you can get an orange red with rgb(255,69,0) or a dark red with rgb(139,0,0) . Below an example of how the color changes when you adjust two of the RGB values: the top left corner of the colored square is equal to rgb(0,0,0) , the top right is equal to rgb(0,0,255) , the bottom left corner to rgb(0,255,0) and the bottom right corner to rgb(0,255,255) . Fortunately, you don’t need to guess the numbers to get the color you want. You can find various color pickers online that let you choose the color with sliders (or other methods) and give you the RGB color value you want to use. Hexadecimal Colors Hexadecimal colors are a different way to write RGB colors. With hexadecimals you also have three numbers, one for each color, with 256 possible values. In this case, though, each color has two digits that go from 0 to F (that is, 0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , and A , B , C , D , E , F ). One single digit has 16 possible values, and two digits have 256 possible values, from 00 , to FF (255). Hexadecimal colors are written with a # in front of the value. Red is written as #FF0000 , dark red as #8B0000 , and orange red as #FF4500 , for example. You can also use color pickers to generate hexadecimal values. Hexadecimal shorthand You can write hexadecimal numbers in shorthand form, using only three digits instead of six. For example, you can write red like #F00 . This reduces the number of possible colors to just above 4,000, but it is shorter to write, and sometimes that is what is important. Each digit is in place of two identical digits, so we can’t write #8B0000 in shorthand form, as 8 and B are not identical. But we can write #800 which is equal to #880000 , pretty similar to the other dark red. And orange red can be #F40 (equal to #FF4400 ). HSL Colors HSL means Hue-Saturation-Lightness, and it is a completely different way of writing colors than what we have seen so far. HSL colors are represented with three numbers: the hue goes from 0 to 360 , and saturation and lightness from 0 to 100 . The hue determines the base color, and its value is an angle, a degree on the color wheel. In this case, red is 0 , green is 120 , blue is 240 , and 360 is again red. Saturation goes from 0 , which makes the color gray, to 100 , which shows the full color. Lightness is the amount of black or white added to the color. 0 is black, 50 is the color itself, and 100 is white. For example, you’d write red as hsl(0,100%,50%) , orange red as hsl(16,100%,50%) , and dark red as hsl(0,100%,27%) . It can be easier to find similar colors using HSL than with the other color schemes. With red and its variations you have seen that to get a darker red you can just change the lightness percentage, and mixing red with an other color is enough to change its hue value a bit. Let’s see it in action with a mixed color in hexadecimal, like orange ( #FFA500 or rgb(255,166,0) ), written in HSL as hsl(39,100%,50%) . You can get a lighter orange just by increasing the lightness. So for example you can write hsl(39,100%,65%) to get this lighter orange. With the other notations you would have needed to write rgb(255,193,77) or #FFC14D . You can also find color pickers online for HSL colors. Property name short-hand You can also set the background color using the short-hand background property. This is a more versatile property, as it is shorthand for various background properties, like background-image and background-position . When you use it with a color value it works exactly the same as background-color . Conclusion You have learned how to give a background color to your HTML elements using the background-color property and its shorthand background , and using different color notations. Now you have all the tools you need to add whatever colors you want to your web pages. Enjoy! Appendix All 140+ named colors Spelling Variations The color names containing the word «Gray» can also be written with the spelling «Grey» as shown below. Источник
- Color Values
- CSS Background Color – How to Change the Background Color in HTML
- How to Change the Background Color of an HTML Element
- Different Color Notations
- HTML Color Names
- RGB Colors
- Hexadecimal Colors
- Hexadecimal shorthand
- HSL Colors
- Property name short-hand
- Conclusion
- Appendix
- All 140+ named colors
- Spelling Variations
background-color
CSS-свойство background-color CSS устанавливает цвет фона элемента.
Интерактивный пример
Синтаксис
/* Словесные значения */ background-color: red; /* Шестнадцатеричное значение */ background-color: #bbff00; /* Шестнадцатеричное значение с alpha-каналом */ background-color: #11ffee00; /* 00 - полностью прозрачный */ background-color: #11ffeeff; /* ff - непрозрачный */ /* RGB-значение */ background-color: rgb(255, 255, 128); /* RGBA-значение или RGB с alpha-каналом */ background-color: rgba(117, 190, 218, 0.0); /* 0.0 - полностью прозрачный */ background-color: rgba(117, 190, 218, 0.5); /* 0.5 - полупрозрачный */ background-color: rgba(117, 190, 218, 1.0); /* 1.0 - непрозрачный */ /* HSLA-значение */ background-color: hsla(50, 33%, 25%, 0.75); /* Специальные словесные значения */ background-color: currentColor; background-color: transparent; /* Общие значения */ background-color: inherit; background-color: initial; background-color: unset;
Свойство background-color определяется единственным значением .
Значения
Формальный синтаксис
Примеры
HTML
div class="exampleone"> Lorem ipsum dolor sit amet, consectetuer div> div class="exampletwo"> Lorem ipsum dolor sit amet, consectetuer div> div class="examplethree"> Lorem ipsum dolor sit amet, consectetuer div>
CSS
.exampleone background-color: teal; color: white; > .exampletwo background-color: rgb(153, 102, 153); color: rgb(255, 255, 204); > .examplethree background-color: #777799; color: #FFFFFF; > Результат
Проблемы доступности
Важно обеспечить достаточный цветовой контраст между цветом текста и фоном, чтобы люди со слабым зрением могли его прочитать, но при этом должна быть достаточная разница между введённым текстом и текстом placeholder, чтобы пользователь не путал их.
Коэффициент цветового контраста определяется путём сравнения яркости текста placeholder и цветом фона формы ввода. Чтобы соответствовать рекомендациям Web Content Accessibility Guidelines (WCAG), требуется соотношение 4.5:1 для основного текста и 3:1 для более крупного текста, например, заголовков. Крупный текст определяется как 18.66px и больше с жирным начертанием или 24px и больше с обычным начертанием.
Спецификации
Совместимость с браузерами
BCD tables only load in the browser
Смотрите также
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This page was last modified on 10 окт. 2022 г. by MDN contributors.
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HTML Colors
HTML colors are specified with predefined color names, or with RGB, HEX, HSL, RGBA, or HSLA values.
Color Names
In HTML, a color can be specified by using a color name:
Background Color
You can set the background color for HTML elements:
Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.
Example
Hello World
Lorem ipsum.
Text Color
You can set the color of text:
Hello World
Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.
Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.
Example
Hello World
Lorem ipsum.
Ut wisi enim.
Border Color
You can set the color of borders:
Hello World
Hello World
Hello World
Example
Hello World
Hello World
Hello World Color Values
In HTML, colors can also be specified using RGB values, HEX values, HSL values, RGBA values, and HSLA values.
The following three elements have their background color set with RGB, HEX, and HSL values:
The following two elements have their background color set with RGBA and HSLA values, which add an Alpha channel to the color (here we have 50% transparency):
CSS Background Color – How to Change the Background Color in HTML
Ilenia Magoni
You have started creating your HTML page, and you want to give it some color – maybe change the color of the text or set a nice background. So how do you do that?
In this article I’ll show you how you can change the background color of a page in a few different ways.
How to Change the Background Color of an HTML Element
You can change the background color of an HTML element using the background-color CSS property and giving it a value of a color.
There are about 140 color names that you can use, like teal , hotpink , indigo and many others.
Note: if you give a background-color to an element and don’t see it change, it can be a syntax error, or it can also be that the element does not have a width or height. Try to put some content in it, or give it a width and an height using the CSS properties width and height .
There are actually almost 16.8 million colors that you can use. You can use all these colors using RGB values. There are also HSL colors where you have about 3.7 million colors to choose from. In the next section you will learn about all these different ways of creating colors.
Different Color Notations
The background-color property accepts colors as possible values. Here you will see four different notations for color values.
The first will be color names, and there are around 140 keywords that you can use. This is the easiest way to choose a color as it doesn’t require understanding special notations – but it has a limited range of options.
The second and third ways to name or choose colors are RGB values and hexadecimal values. In these notations, colors are identified by the amount of red, green, and blue that they contain.
This comes from how a screen produces color. A screen is made of pixels, and each pixel is lighted by LEDs of three different colors, green, blue and red, that can shine at different intensities.
The fourth notation is HSL colors, or Hue-Saturation-Lightness. This notation comes from Graphic Design, as it reflects a more natural way for humans to think about color: a pure color (hue), of which saturation and lightness can be varied.
You can use any of these color notations to give a color to the background, but let’s see them in more details, so you can choose the one you prefer.
HTML Color Names
There are 16 basic colors recognised in the first version of HTML. Now there are 140+ named colors you can use.
You can see all the named colors in the appendix at the end of the article.
RGB Colors
RGB stands for Red-Green-Blue. The colors in this format are written rgb(0,0,0) , where each value is a number between 0 and 255 representing the amount of red, green, and blue used to make each color, respectively.
For example, if you have rgb(0,0,0) you get black.
To get red, you write rgb(255,0,0) , where there is as much red as possible with 255 , 0 for blue, and 0 for green.
You can get other variations of red with small amounts of green and/or blue, and a bit less red. For example you can get an orange red with rgb(255,69,0) or a dark red with rgb(139,0,0) .
Below an example of how the color changes when you adjust two of the RGB values: the top left corner of the colored square is equal to rgb(0,0,0) , the top right is equal to rgb(0,0,255) , the bottom left corner to rgb(0,255,0) and the bottom right corner to rgb(0,255,255) .
Fortunately, you don’t need to guess the numbers to get the color you want. You can find various color pickers online that let you choose the color with sliders (or other methods) and give you the RGB color value you want to use.
Hexadecimal Colors
Hexadecimal colors are a different way to write RGB colors. With hexadecimals you also have three numbers, one for each color, with 256 possible values.
In this case, though, each color has two digits that go from 0 to F (that is, 0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , and A , B , C , D , E , F ). One single digit has 16 possible values, and two digits have 256 possible values, from 00 , to FF (255).
Hexadecimal colors are written with a # in front of the value. Red is written as #FF0000 , dark red as #8B0000 , and orange red as #FF4500 , for example.
You can also use color pickers to generate hexadecimal values.
Hexadecimal shorthand
You can write hexadecimal numbers in shorthand form, using only three digits instead of six. For example, you can write red like #F00 . This reduces the number of possible colors to just above 4,000, but it is shorter to write, and sometimes that is what is important.
Each digit is in place of two identical digits, so we can’t write #8B0000 in shorthand form, as 8 and B are not identical. But we can write #800 which is equal to #880000 , pretty similar to the other dark red. And orange red can be #F40 (equal to #FF4400 ).
HSL Colors
HSL means Hue-Saturation-Lightness, and it is a completely different way of writing colors than what we have seen so far.
HSL colors are represented with three numbers: the hue goes from 0 to 360 , and saturation and lightness from 0 to 100 .
The hue determines the base color, and its value is an angle, a degree on the color wheel. In this case, red is 0 , green is 120 , blue is 240 , and 360 is again red.
Saturation goes from 0 , which makes the color gray, to 100 , which shows the full color.
Lightness is the amount of black or white added to the color. 0 is black, 50 is the color itself, and 100 is white.
For example, you’d write red as hsl(0,100%,50%) , orange red as hsl(16,100%,50%) , and dark red as hsl(0,100%,27%) .
It can be easier to find similar colors using HSL than with the other color schemes. With red and its variations you have seen that to get a darker red you can just change the lightness percentage, and mixing red with an other color is enough to change its hue value a bit.
Let’s see it in action with a mixed color in hexadecimal, like orange ( #FFA500 or rgb(255,166,0) ), written in HSL as hsl(39,100%,50%) . You can get a lighter orange just by increasing the lightness.
So for example you can write hsl(39,100%,65%) to get this lighter orange. With the other notations you would have needed to write rgb(255,193,77) or #FFC14D .
You can also find color pickers online for HSL colors.
Property name short-hand
You can also set the background color using the short-hand background property.
This is a more versatile property, as it is shorthand for various background properties, like background-image and background-position . When you use it with a color value it works exactly the same as background-color .
Conclusion
You have learned how to give a background color to your HTML elements using the background-color property and its shorthand background , and using different color notations.
Now you have all the tools you need to add whatever colors you want to your web pages. Enjoy!
Appendix
All 140+ named colors
Spelling Variations
The color names containing the word «Gray» can also be written with the spelling «Grey» as shown below.