What does color mean in css

The color attribute defines text or background color in CSS and can be specified in a variety of formats, including hexadecimal values, RGB values, RGBA values, HTML color names, HSL and HSLA values, and keywords such as currentColor , inherit, transparent).

The meaning of color in CSS

The color property defines the color of the text or background of an element in CSS. It is specified in various formats, including:

Hexadecimal value

A hexadecimal value is a six-digit number starting with a pound sign (#) Code that represents the red, green, and blue (RGB) values ​​of a color. For example:

color: #0000FF; /* 蓝色 */

RGB values

RGB values ​​are a comma-separated group of values ​​in parentheses that specify the intensities of red, green, and blue in the color. Each value is between 0 and 255. For example:

color: rgb(0, 0, 255); /* 蓝色 */

RGBA value

An extension of RGB value that adds a fourth value (alpha channel), representing the transparency of the color. Alpha channel values ​​range from 0 (transparent) to 1 (opaque). For example:

color: rgba(0, 0, 255, 0.5); /* 半透明蓝色 */

HTML color names

CSS supports a range of standard HTML color names, including:

color: red;
color: green;
color: blue;

HSL and HSLA values

HSL (Hue, Saturation, Lightness) values ​​represent a color using its hue (0-360°), saturation (0-100%), and lightness (0-100%). Extended HSLA values ​​include a fourth alpha channel value. For example:

color: hsl(120, 50%, 50%); /* 绿色 */

color keyword

CSS also supports some special keywords, including:

• currentColor: Use the color of the parent element
• inherit: inherit color from parent element
• transparent: transparent

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