ITWissen.info - Tech know how online

cyan, magenta, yellow (CMY)

The CMY color model works with the primary colors of subtractive color mixing and is used for reflective media, i.e. for printing equipment. The color space of the CMY color model is smaller than that of the RGB color model; this means that fewer colors can be reproduced with this model.

The CMY color model can be formed by a cube, where the edges form vectors of length "1". These unit vectors are the colors cyan, magenta and yellow (Yellow), hence the name CMY.

CMY color model with brightness axis

CMY color model with brightness axis

From these primary colors CMY, the secondary colors red, green and blue can be formed, as well as the achromatic colors black and white. If, for example, the primary colors magenta and yellow are combined, the result is the secondary color red, i.e. a primary color of additive color mixing. The brightness axis runs on the diagonal between black and white.

RGB and CMY color space in the color wheel

RGB and CMY color space in the color wheel

When printing with the three primary colors cyan, magenta and yellow, the color black cannot be printed in sufficient depth, which is due to the inks used in practice, the CMY model has been extended to include black to form the CMYK color model. Where "K" stands for depth and contrast and is printed in black. There is a direct connection between the three color models CMY, CMYK and RGB, which can be established via the UCR process, Under Color Removal (UCR), or the GCR process, Gray Component Replacement (GCR).

Informations:
Englisch: cyan, magenta, yellow - CMY
Updated at: 15.03.2019
#Words: 250
Links: color model, media, color space, RGB color model, unit (U)
Translations: DE
Sharing:    

All rights reserved DATACOM Buchverlag GmbH © 2022