CIE 1964 uniform colour space
three-dimensional, approximately uniform colour space produced by plotting in rectangular coordinates
Note 2 to entry: The difference between two stimuli, Δ
Note 3 to entry: The CIE 1964 uniform colour space is obsolete (except that it is still used in the calculation of colour rendering index). The currently recommended object colour spaces are the CIE 1976 L*a*b* colour space and the CIE 1976 L*u*v* colour space.
Note 4 to entry: This entry was numbered 17-153 in CIE S 017:2011.