CMYK to RGB Converter
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Convert CMYK ink percentages into RGB and hex so you can see roughly how a print colour will appear on screen — matching a brand colour specified for print, or bringing a printed palette into a website. The conversion is the standard arithmetic; the caveat is the same in this direction as the other, since screen and ink cannot reproduce identical ranges.
How to use CMYK to RGB
- 1
Enter cyan, magenta, yellow and black as percentages.
- 2
Read the RGB values and the hex code.
- 3
Check the result against a printed proof where colour accuracy matters.
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Frequently asked questions
Why does the screen colour not match my printed sample?+
Because your monitor is emitting light and the sample is reflecting it, under whatever lighting you happen to be in. Even a calibrated screen only approximates ink. Treat the result as a good starting point rather than a match.
I converted RGB to CMYK and back — why are the numbers different?+
Because CMYK to RGB is many-to-one. Several ink combinations produce the same on-screen colour, and the reverse conversion returns the canonical one with the black component maximised. The colour is the same even though the numbers moved.
What is “rich black”?+
100% K alone prints as a slightly washed dark grey on many presses, so designers add cyan, magenta and yellow underneath to deepen it. That is a press decision rather than a conversion, which is why no formula produces it automatically.