RGB

additive color model based on combining red, green, and blue

RGB, also called additive color mixing, is a color coding using light, with red, green, and blue. It is used in a hexadecimal code (#RRGGBB), with the left two digits with red, the center with green, and the right with blue. There can only be a maximum 255 of each color.

Additive color mixing: adding red to green yields yellow; adding yellow to blue yields white.