Color ○ ❪✺ᵢ❫ Color Concepts ○ ❪◑❫ Colors ○ ❪✺ᵢ❫ Color Concepts ○ ❪✺₁ᵢ❫ Color Classes ○ Color Index ○ Spectral Color ○ ❪✺₁ᵢ❫ Color Classes ○ Color Space ○꠹ Color-Color Diagram ○꠹