The light source is critical for proper matching because it has a major influence on how color appears to an observer,a principle called:

Question

Quizplus · Accepted Answer

The principle referred to in the question is metamerism, which is the phenomenon in which two different colors can appear identical under one light source, but different under another. Thus, the choice of light source is critical for proper color matching, and this is specifically due to metamerism. Reflectance, transmittance, and translucence are related to how light interacts with surfaces or materials, but they do not explain the influence of the light source on color perception.

The Light Source Is Critical for Proper Matching Because It