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GamutDesk

CMYK Print to Screen RGB Converter

Convert subtractive 4-channel print inks (Cyan, Magenta, Yellow, Black) to digital screen RGB tuples with live preview.

100% Client-SideZero Data Collection
CMYK Print Inks (%)
Cyan (C)
Magenta (M)
Yellow (Y)
Black Key (K)
Equivalent RGB
rgb(38, 99, 235)
CSS RGB String
rgb(38, 99, 235)
Web HEX
#2663EB

Technical Specification & Mathematical Principles

CMYK ink percentages (0 - 100%) are first divided by 100 to yield fractional components [c, m, y, k].

The resulting RGB values are computed as: R = Math.round(255 * (1 - c) * (1 - k)), G = Math.round(255 * (1 - m) * (1 - k)), and B = Math.round(255 * (1 - y) * (1 - k)).

Frequently Asked Questions

Printing inks absorb (subtract) specific wavelengths of reflected light. White paper reflects all wavelengths; adding Cyan, Magenta, Yellow, and Key Black subtracts brightness toward black.

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