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Home Course HTML Colors

HTML Colors

by MH RISHAD - 08 Dec 2018
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HTML colors are specified using predefined color names, or RGB, HEX, HSL, RGBA, HSLA values.


Color Names

In HTML, a color can be specified by using a color name:

Red  Orange Violet  SlateBlue  Gray  Green


Background Color

You can set the background color for HTML elements:

<h1 style="background-color:DodgerBlue;">Hello World</h1>
<p style="background-color:Tomato;">Lorem ipsum...</p>

Text Color

You can set the color of text:

<h1 style="color:Tomato;">Hello World</h1>
<p style="color:DodgerBlue;">Lorem ipsum...</p>
<p style="color:MediumSeaGreen;">Ut wisi enim...</p>

Border Color

You can set the color of borders:

<h1 style="border:2px solid Tomato;">Hello World</h1>
<h1 style="border:2px solid DodgerBlue;">Hello World</h1>
<h1 style="border:2px solid Violet;">Hello World</h1>

 

Color Values

In HTML, colors can also be specified using RGB values, HEX values, HSL values, RGBA values, and HSLA values:

Same as color name "Tomato":

<h1 style="background-color:rgb(255, 99, 71);">...</h1>
<h1 style="background-color:#ff6347;">...</h1>
<h1 style="background-color:hsl(9, 100%, 64%);">...</h1>

<h1 style="background-color:rgba(255, 99, 71, 0.5);">...</h1>
<h1 style="background-color:hsla(9, 100%, 64%, 0.5);">...</h1>

RGB Value

In HTML, a color can be specified as an RGB value, using this formula:

rgb(red, greenblue)

Each parameter (red, green, and blue) defines the intensity of the color between 0 and 255.

For example, rgb(255, 0, 0) is displayed as red, because red is set to its highest value (255) and the others are set to 0.

To display the color black, all color parameters must be set to 0, like this: rgb(0, 0, 0).

To display the color white, all color parameters must be set to 255, like this: rgb(255, 255, 255).

Experiment by mixing the RGB values below:

<!DOCTYPE html>
<html>
<body>

<h1 style="background-color:rgb(255, 0, 0);">rgb(255, 0, 0)</h1>
<h1 style="background-color:rgb(0, 0, 255);">rgb(0, 0, 255)</h1>
<h1 style="background-color:rgb(60, 179, 113);">rgb(60, 179, 113)</h1>
<h1 style="background-color:rgb(238, 130, 238);">rgb(238, 130, 238)</h1>
<h1 style="background-color:rgb(255, 165, 0);">rgb(255, 165, 0)</h1>
<h1 style="background-color:rgb(106, 90, 205);">rgb(106, 90, 205)</h1>

<p>In HTML, you can specify colors using RGB values.</p>

</body>
</html>

 

HEX Value

In HTML, a color can be specified using a hexadecimal value in the form:

#rrggbb

Where rr (red), gg (green) and bb (blue) are hexadecimal values between 00 and ff (same as decimal 0-255).

For example, #ff0000 is displayed as red, because red is set to its highest value (ff) and the others are set to the lowest value (00).

<!DOCTYPE html>
<html>
<body>

<h1 style="background-color:#ff0000;">#ff0000</h1>
<h1 style="background-color:#0000ff;">#0000ff</h1>
<h1 style="background-color:#3cb371;">#3cb371</h1>
<h1 style="background-color:#ee82ee;">#ee82ee</h1>
<h1 style="background-color:#ffa500;">#ffa500</h1>
<h1 style="background-color:#6a5acd;">#6a5acd</h1>

<p>In HTML, you can specify colors using Hex values.</p>

</body>
</html>


HSL Value

In HTML, a color can be specified using hue, saturation, and lightness (HSL) in the form:

hsl(huesaturationlightness)

Hue is a degree on the color wheel from 0 to 360. 0 is red, 120 is green, and 240 is blue.

Saturation is a percentage value, 0% means a shade of gray, and 100% is the full color.

Lightness is also a percentage, 0% is black, 50% is neither light or dark, 100% is white

<!DOCTYPE html>
<html>
<body>

<h1 style="background-color:hsl(0, 100%, 50%);">hsl(0, 100%, 50%)</h1>
<h1 style="background-color:hsl(240, 100%, 50%);">hsl(240, 100%, 50%)</h1>
<h1 style="background-color:hsl(147, 50%, 47%);">hsl(147, 50%, 47%)</h1>
<h1 style="background-color:hsl(300, 76%, 72%);">hsl(300, 76%, 72%)</h1>
<h1 style="background-color:hsl(39, 100%, 50%);">hsl(39, 100%, 50%)</h1>
<h1 style="background-color:hsl(248, 53%, 58%);">hsl(248, 53%, 58%)</h1>

<p>In HTML, you can specify colors using HSL values.</p>

</body>
</html>

 


Saturation

Saturation can be described as the intensity of a color.

100% is pure color, no shades of gray

50% is 50% gray, but you can still see the color.

0% is completely gray, you can no longer see the color.

<!DOCTYPE html>
<html>
<body>

<h1 style="background-color:hsl(0, 100%, 50%);">hsl(0, 100%, 50%)</h1>
<h1 style="background-color:hsl(0, 80%, 50%);">hsl(0, 80%, 50%)</h1>
<h1 style="background-color:hsl(0, 60%, 50%);">hsl(0, 60%, 50%)</h1>
<h1 style="background-color:hsl(0, 40%, 50%);">hsl(0, 40%, 50%)</h1>
<h1 style="background-color:hsl(0, 20%, 50%);">hsl(0, 20%, 50%)</h1>
<h1 style="background-color:hsl(0, 0%, 50%);">hsl(0, 0%, 50%)</h1>

<p>With HSL colors, less saturation mean less color. 0% is completely gray.</p>

</body>
</html>

Lightness

The lightness of a color can be described as how much light you want to give the color, where 0% means no light (black), 50% means 50% light (neither dark nor light) 100% means full lightness (white).

<!DOCTYPE html>
<html>
<body>

<h1 style="background-color:hsl(0, 100%, 0%);">hsl(0, 100%, 0%)</h1>
<h1 style="background-color:hsl(0, 100%, 25%);">hsl(0, 100%, 25%)</h1>
<h1 style="background-color:hsl(0, 100%, 50%);">hsl(0, 100%, 50%)</h1>
<h1 style="background-color:hsl(0, 100%, 75%);">hsl(0, 100%, 75%)</h1>
<h1 style="background-color:hsl(0, 100%, 90%);">hsl(0, 100%, 90%)</h1>
<h1 style="background-color:hsl(0, 100%, 100%);">hsl(0, 100%, 100%)</h1>

<p>With HSL colors, 0% lightness means black, and 100 lightness means white.</p>

</body>
</html>

 

RGBA Value

RGBA color values are an extension of RGB color values with an alpha channel - which specifies the opacity for a color.

An RGBA color value is specified with:

rgba(red, greenblue, alpha)

The alpha parameter is a number between 0.0 (fully transparent) and 1.0 (not transparent at all):

<!DOCTYPE html>
<html>
<body>

<h1 style="background-color:rgba(255, 99, 71, 0);">rgba(255, 99, 71, 0)</h1>
<h1 style="background-color:rgba(255, 99, 71, 0.2);">rgba(255, 99, 71, 0.2)</h1>
<h1 style="background-color:rgba(255, 99, 71, 0.4);">rgba(255, 99, 71, 0.4)</h1>
<h1 style="background-color:rgba(255, 99, 71, 0.6);">rgba(255, 99, 71, 0.6)</h1>
<h1 style="background-color:rgba(255, 99, 71, 0.8);">rgba(255, 99, 71, 0.8)</h1>
<h1 style="background-color:rgba(255, 99, 71, 1);">rgba(255, 99, 71, 1)</h1>

<p>You can make transparent colors by using the RGBA color value.</p>

</body>
</html>

HSLA Value

HSLA color values are an extension of HSL color values with an alpha channel - which specifies the opacity for a color.

An HSLA color value is specified with:

hsla(hue, saturationlightness, alpha)

The alpha parameter is a number between 0.0 (fully transparent) and 1.0 (not transparent at all):

<!DOCTYPE html>
<html>
<body>

<h1 style="background-color:hsla(9, 100%, 64%, 0);">hsla(9, 100%, 64%, 0)</h1>
<h1 style="background-color:hsla(9, 100%, 64%, 0.2);">hsla(9, 100%, 64%, 0.2)</h1>
<h1 style="background-color:hsla(9, 100%, 64%, 0.4);">hsla(9, 100%, 64%, 0.4)</h1>
<h1 style="background-color:hsla(9, 100%, 64%, 0.6);">hsla(9, 100%, 64%, 0.6)</h1>
<h1 style="background-color:hsla(9, 100%, 64%, 0.8);">hsla(9, 100%, 64%, 0.8)</h1>
<h1 style="background-color:hsla(9, 100%, 64%, 1);">hsla(9, 100%, 64%, 1)</h1>

<p>You can make transparent colors by using the HSLA color value.</p>

</body>
</html>

 Thank You

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