DisplayMaker Legacy ColorMark+ - User Guide

Color Management Overview 1-9
Colors on your monitor need to be reproduced by printing ink
on paper. Spot colors are reproduced with pre-mixed inks, while
process colors, such as the Standard Web Offset Press set
(SWOP), are reproduced with cyan, magenta, yellow, and black
inks (CMYK). Spot color inks (for example, the PANTONE
Matching System) provide a much larger color gamut than
CMYK process inks used by ink jet printers and offset presses. To
extend the CMYK gamut, ColorSpan inks are available in
extended process color sets (CMYK plus orange, green, blue,
red).
The CIE Yxy Color Model
In 1931 the “Commission Internationale de l’Eclairage” (CIE)
precisely defined three primary colors, or tristimulus values,
called X (red), Y (green) and Z (blue) from which all other colors
visible to a “standard” observer could be created. This is the XYZ
model.
Another space to represent colors is the CIE Yxy color model. In
this model, all colors having the same lightness lie on a roughly
triangular flat plane. This is the color space shown on the Edit
Profiles dialog box (see “Editing Profiles” on page 4-3).