Color Converter

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rgb to cmyk

Convert RGB to CMYK

When the intent is print, it makes more sense to highlight CMYK than showing every format at once.

Limits of computed CMYK

The tool uses the direct K = 1 - max(R,G,B) formula, useful for quick reference.
For real print work, ICC profiles and proofs are still required.

RGB → CMYK examples

Black

Input: rgb(0, 0, 0)
Expected output: cmyk(0%, 0%, 0%, 100%)

Simple edge case.

Web red

Input: rgb(255, 0, 0)
Expected output: cmyk(0%, 100%, 100%, 0%)

Classic RGB primary example.

Full tool FAQ

Does the tool convert the same color between HEX, RGB, HSL and other formats?

Yes. The idea is to show equivalent representations of the same color in different notations, making it easier to use the value across CSS, design systems, visual documentation and design-to-code workflows. You type in one format and get all the others synchronized at once, including HSV, CMYK, LAB and XYZ.

Do HEX and RGB represent the same color?

What is the difference between HEX, RGB and HSL?

What does a color's alpha channel mean?

Why can the same color look different on different screens?

When does HSL make more sense than HEX?

Do CMYK and RGB serve the same purpose?

Is every color conversion perfectly accurate?

Frequently asked questions

Can I send this CMYK to a print shop?

Use it as a reference. For production, convert with the ICC profile required by the print shop.

Can conversion change appearance?

It can. Some RGB colors are outside a print CMYK gamut.

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