Older CIE Standards

Colour matching functions

CIE 1931 2-deg, XYZ CMFs

CIE 1964 10-deg, XYZ CMFs


Chromaticity coordinates

CIE 1931 2-deg xyz chromaticity coordinates

CIE 1964 10-deg chromaticity xyz coordinates


Luminous efficiency functions

CIE (1924) Photopic V(λ)

CIE (1951) Scotopic V'(λ)


Standard illuminants

CIE Illuminant A

CIE Illuminant D65