Red - Green - Blue
Cyan, yellow, magenta, key (black)
Hue, saturation, value
Hue, saturation, lightness
The #2A0080 RGB color code (Indigo (web)) is composed of a hexadecimal 2A red (42/256), a 00 green (0/256) and a 80 blue component (128/256). The decimal RGB color code is rgb(42,0,128).