Understanding RGB and CMYK color models
From Free Knowledge Base- The DUCK Project: information for everyone
RGB
- RGB is an additive color model
- RGB acronym: red, geen, blue
- RGB deals with light
CMYK
- CMYK is a subtractive color model.
- CMYK acronym: cyan, magenta, yellow, and key
- Key is equivalent to the color black.
- CMYK deals with print
RGB-to-CMYK
Converting a graphic image from RGB to CMYK results in colors being shifted. The converting software within the restraints of its own programming logic gets as close as possible to the appearance of the original RGB colors in the image. RGB colors out of the CMYK color gamut are converted to the nearest CMYK color.