Jump to:

Our volunteers haven't translated this article into ไทย yet. Join us and help get the job done!
You can also read the article in English (US).

Red Green Blue (RGB) is a color model that represents colors as mixtures of three underlying components (or channels), namely, red, green, and blue. Each color is described by a sequence of three numbers (typically between 0.0 and 1.0, or between 0 and 255) that represent the different intensities (or contributions) of red, green, and blue, in determining the final color.

There are many ways to describe the RGB components of a color. In CSS they can be represented as a single 24-bit integer in hexadecimal notation (for example, #add8e6 is light blue), or in functional notation as three separate 8-bit integers (for example, rgb(46, 139, 87) is sea green). In OpenGL, WebGL, and GLSL the red-green-blue components are fractions (floating-point numbers between  0.0  and 1.0), although in the actual color buffer they are typically stored as 8-bit integers. Graphically, a color can be represented as a point in a three-dimensional grid or cube, where each dimension (or axis) corresponds to a different channel.

Learn more

General knowledge

Learn about it

Document Tags and Contributors

ผู้มีส่วนร่วมกับหน้านี้: klez, jswisher, Jinishc, ifilin
อัปเดตล่าสุดโดย: klez,