Cie Xyz; Cie L*C*H* Ab - Techkon SpectroDens Manual

Manual TECHKON SpectroDens

CIE XYZ

The CIE XYZ will display standard color values.

CIE L*C*h* ab

The CIE L*C*h* ab display is closely related to the CIE L*a*b* display (see p. 51).
Instead of Cartesian coordinates, polar coordinates are used. The value C* stands for
Chroma and the angular value h* for hue.
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XYZ standard color values are (beside L*a*b*-
values) a different way of describing the color
values. They are not as practical to use and
therefore not as widely used in the printing
industry.
L*C*h*-values are very popular, because they
describe colors in a simple way. The further
the color is located from the center of the
color circle, the more saturated and vivid it
appears.