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CMYK to RGB Converter

Turn CMYK print percentages into RGB and HEX for screens.

RGB
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Quick Tool Overview

The CMYK to RGB Converter turns cyan, magenta, yellow and black percentages into RGB and HEX with a live swatch, accepts pasted CMYK values, and warns when total ink coverage is too heavy to print.

What it does
Converts CMYK to RGB and HEX
You give it
Four ink percentages or a pasted CMYK value
You get back
RGB, HEX and every other notation
Best for
Bringing print brand colours onto screens
Converters Free, unlimited use No sign-up Runs in your browser

About the CMYK to RGB Converter

Brand guidelines, print specs and packaging artwork often give a colour only in CMYK, and the website, app or presentation that uses the same brand needs RGB or HEX. Guessing the screen equivalent by eye is how a company ends up with three slightly different shades of its own blue.

Set cyan, magenta, yellow and black with the boxes or sliders, or paste a CMYK value in percentages or fractions. The converter shows the RGB and HEX at once with a live swatch, and lists the same colour as HSL, HSV, OKLCH and CIELAB with its contrast against white and black. It warns when total ink coverage passes the 300 percent most presses allow.

Key features of the CMYK to RGB Converter

Sliders and boxes

Adjust each ink by dragging or typing exact percentages.

Paste in any style

cmyk() with percentages or plain fractions are read and split into the four inks.

Live swatch

The colour updates as you move a slider, with its HEX on the swatch.

Ink limit warning

Coverage above 300% is flagged, because presses cannot dry that much ink.

All formats listed

HSL, HSV, OKLCH and CIELAB of the result, each ready to copy.

How to use the CMYK to RGB Converter

  1. 1

    Set the four inks

    Type C, M, Y and K percentages or drag the sliders.

  2. 2

    Or paste a value

    cmyk(0%, 47%, 100%, 0%) and 0 0.47 1 0 are both accepted.

  3. 3

    Read RGB and HEX

    The screen colour appears with a swatch and every other notation.

  4. 4

    Watch the ink total

    A warning appears when coverage is too heavy to print cleanly.

Frequently asked questions

R = 255 × (1 − C) × (1 − K), G = 255 × (1 − M) × (1 − K) and B = 255 × (1 − Y) × (1 − K), with each percentage written as a fraction.

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