Associating color appearance with the cone chromaticity space

A cone chromaticity space, a transform of a colorimetric specification system into coordinates that represent cone excitations, does not provide color appearance information. Boynton and Olson (Color Research and Application 12, 94–105, 1987) gathered color naming for the 424 Optical Society of America Uniform Color Scales (OSA-UCS) color samples. Here, a computational algorithm was developed that converts OSA-UCS sample values into L, M, S cone excitations based on the 1964 CIE 10° Standard Observer. This makes it possible to plot the cone chromaticities associated with the eight color names used by Boynton and Olsen’s observers to describe the non-dark appearing colors.