CIE Chromaticity Diagram

A chart attempting to define perception of the color of light, first proposed in 1931 by the International Commission on Illumination (CIE).

Note that the diagram forms the basis of many modern lighting control consoles' "color picker."


CIE Color System

Although out of date, the book Color Science for Lighting the Stage, Warfel and Klappert, Yale University Press, 1981, is the authoritative text on the subject, particularly with respect to plastic color media.