chromatophilia

noun

chro·​mato·​phil·​ia krō-ˌmat-ə-ˈfil-ē-ə  ˌkrō-mət-ə- 

variants also chromophily

krō-ˈmäf-ə-lē 

plural chromatophilias also chromatophilies

: the quality or state of being chromophil