noun
1. : the color or one of the colors of the clothing issued by a feudal superior to his retainers or by a person of wealth or rank to his servants
2. livery colors plural
a. : the principal metal and the principal color of an escutcheon of arms often used also as the principal colors of a flag or ensign or of a personal standard as well as of the liveries of the armiger's servants
b. : the principal colors of the flag of a political unit (as a nation) sometimes not identical with its armorial colors : the national or civic colors