Red - Green - Blue
Cyan, yellow, magenta, key (black)
Hue, saturation, value
Hue, saturation, lightness
The #150080 RGB color code (Duke blue) is composed of a hexadecimal 15 red (21/256), a 00 green (0/256) and a 80 blue component (128/256). The decimal RGB color code is rgb(21,0,128).