colour order system
arrangement of samples according to a set of principles for the ordering and denotation of their colour, usually according to defined scales
Note 1 to entry: A colour order system is usually exemplified by a set of physical samples, but this is not a prerequisite for defining a colour order system.
Note 2 to entry: See also "colour atlas".
Note 3 to entry: This entry was numbered 17-219 in CIE S 017:2011.