RGB to CMYK

Turn any rgb() value into print-ready CMYK instantly, no signup needed.

Step one — Paste your rgb() value

Also accepts bare numbers, like 79, 70, 229.

Step two — Your CMYK color

Step three — The same color, every format

Converting RGB to CMYK

RGB is built from light, CMYK from ink, so moving between them means switching from an additive model to a subtractive one. This tool converts an rgb() value into print-ready cyan, magenta, yellow and key percentages.

The shift from light to ink

RGB adds light so its brightest colors glow on a screen.
CMYK subtracts light with ink on white paper, so it cannot reach those same glowing brights.
The converter finds the nearest ink mix, which is why some vivid RGB colors come out muted.

Worked example: rgb(30, 144, 255) becomes roughly cmyk(88%, 44%, 0%, 0%).

When you need it

Use it when a screen design is heading to print. To start directly from a hex code instead, use HEX to CMYK.

Why does RGB to CMYK lose brightness?

The brightest RGB colors fall outside what ink can produce, so they shift to the closest printable mix.