metamerism
definition
the phenomenon where two colors appear to be the same under certain lighting conditions but differ under others
example
The metamerism of the paint colors led to confusion when trying to match them under different lighting conditions.
synonyms
color matchingcolor constancyhue shift
word origin — Derived from the Greek word 'metameros', meaning 'having different parts' ('meta' meaning 'beyond' and 'meros' meaning 'part').