Bichromes are drafters able to draft two colors. Most bichromes can draft colors close to one another (orange and red, blue and green...). Those who can draft colors that are separate on the spectrum (yellow and blue, green and red) are called disjoined bichromes.
Bichromes are held with much respect in the Chromeria, but less than polychromes.
Known bichromes include Karris Whiteoak and others.