The Colours are the seven members of the Spectrum: the ruling body of the Chromerian Empire, usually referred to as the Seven Satrapies. Each Colour corresponds to both a Satrapy and a colour of Luxin, with one representative each for Sub-Red, Red, Orange, Yellow, Green, Blue, and Superviolet. In order to serve as a colour, a drafter must be able to draft that colour, but they are not required to be monochromatic in that colour. Andross Guile, for example, is the Red, but is a polychrome who is able to draft Sub-Red, Red, Orange, and Yellow.