(British spelling) Alternative form of colour blind

(British spelling) Any of three colours which, when added to or subtracted from others in different amounts, can generate all other colours

(Britain) A non-commissioned officer in some infantry regiments of the British army, equivalent in rank to a staff sergeant in most other armies. A colour sergeant ranks above a sergeant and below a warrant officer.

plural of colour code

plural of colour sergeant

(snooker) Any one of the three colours normally spotted on the baulk line in snooker. Namely the yellow, green, and brown balls.

(British spelling) A plane triangular graph on which are drawn all the colours that can be made by the additive mixing of red blue and green; these three primary colours are at the apices, while white is in the middle.

(British spelling) A planar circular chart in which related colours are adjacent, and complementary colors are opposite.

(British spelling, colour science) Either of two colours which, when mixed, produce a white or grey.

Britain standard spelling of color blindness.