CSS Reference CSS Selectors CSS ... CSS Color Values CSS Default Values CSS Browser Support ... An RGB color value represents RED, GREEN, and BLUE light sources....

When using relative color syntax inside an rgb() function, the browser converts the origin color into an equivalent RGB color (if it is not already specified as such). The color is defined as three distinct color channel values — r (red), g (green), and b (blue) — plus an alpha channel ...

Get HTML color codes, Hex color codes, RGB, HSL and OKLCH values with our color pickers, color wheel, color chart and HTML color names. Let's go!

RGB color codes chart, RGB color picker, RGB color table.

Each parameter (red, green, and blue) defines the intensity of the color with a value 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 other two (green and blue) are set to 0.

April 15, 2021 - These can come in simple value formats such as simple direct namings like “blue,” “red,” or “purple.” You can choose to simply use one of the 145 named color values in CSS but that won’t cover the 16 million colors available in the CSS RGB range.

RGB colors in CSS can be specified by using the following syntax: rgb(<red_value>, <green_value>, <blue_value>), where each of the three values is an integer ranging from 0 to 255.

February 22, 2025 - The CSS rgb() function represents color in the sRGB space specifying its redness (r), greenness (g), and blueness (b), and an optional transparency value (alpha-value) separated with a forward slash.

Recently, however, we've been getting some new color formats in CSS. They're pretty compelling. Let's talk about them. So, this blog post is about color formats, the syntaxes we use to specify colors. All of the true color formats we've seen so far — rgb(), hex codes, and hsl() — are all bound by the “standard RGB color space”, commonly abbreviated as sRGB.

RGB works the opposite of CMYK, in that none of the colors actually equals black and all of the colors equals white. Don't worry much about the technical details, just how to use them. The CSS syntax for using RGB colors is a little different than we've seen before.

October 22, 2025 - It extends the standard RGB color ... of the rgb() color model, where colors are defined using values for red, green, and blue, each ranging from 0 to 255....

2 weeks ago - The bytes represent the red, green, and blue components of the color. (The optional fourth byte refers to alpha channel.) One byte represents a number in the range 00 to FF (in hexadecimal notation), or 0 to 255 in decimal notation.

November 1, 2025 - Text Color (color): rgb(255, 0, 0); sets the text to red, and font-size: 20px; makes it larger.

em { color: rgb(255,0,0) } /* integer range 0 - 255 */ em { color: rgb(300,0,0) } /* clipped to rgb(255,0,0) */ em { color: rgb(255,-10,0) } /* clipped to rgb(255,0,0) */ em { color: rgb(110%, 0%, 0%) } /* clipped to rgb(100%,0%,0%) */ CSS Color defines the RGB color values in 4.2.1.

All the Tailwind CSS colors in a handy cheatsheet with hex, hsl and rgb values.

CSS supports 140+ color names, HEX values, RGB values, RGBA values, HSL values, HSLA values, and opacity.

These new variables are globally set on :root and are adapted for our new dark color mode while our original theme colors remain unchanged. Colors ending in -rgb provide the red, green, blue values for use in rgb() and rgba() color modes.

Each color can be represented in many different ways. For example blue can also be represented as #0000ff, #00f, rgb(0,0,255) and many other ways. It doesn't matter which one you choose as long as it's a valid color. You can apply any of these colors to a website or blog by using the relevant ...

December 16, 2025 - There are two primary ways of defining an RGB color by its red, green, and blue components in CSS — hexadecimal and rgb() values. Like named colors, these methods use the RGB model and are associated with the sRGB (srgb) color space.