The intensity of each of the three components Red, Green, and Blue of the color composing a point of the screen is coded on eight bits(00 to FF), therefore we get 256 possible intensities for each one of these three basic colors; that is 16 777 216 possible combinations of colors (256 * 256 * 256).

Attribute BGCOLOR or COLOR which one places in the various tags of a HTML page defines the color using the three components Red, Green and Blue.

This utility enables you to display the hexadecimal values of the 216 most significant colors.