Colormapped
Color converter

HEX to CMYK Converter

Convert a HEX color into a mathematical CMYK approximation.

Use a color-managed workflow when exact print reproduction matters.

What this tool does

HEX to CMYK is a two-stage calculation: decode the HEX value to RGB, then estimate CMYK percentages mathematically. It is convenient for reference but not a substitute for profile-aware prepress conversion.

Enter the values in the calculator above and choose Calculate. The calculation runs in your browser; the inputs are not intentionally sent to a Colormapped application server.

How it works

  1. Decode #RRGGBB into integer RGB channels.
  2. Normalize RGB to 0–1.
  3. Calculate the shared black component K.
  4. Calculate C, M, and Y after accounting for K, then round to percentages.

Worked example

Input#5B5CF0
Outputcmyk(62% 62% 0% 6%)

The output is a generic mathematical approximation and intentionally carries no claim about a specific printer, ink set, or paper.

When to use it

  • Get a quick CMYK reference from a web color.
  • Discuss a rough print direction before a profile is chosen.
  • Compare digital brand colors with approximate process-color components.

Accuracy and limits

  • Do not use the result as a press-ready specification when color accuracy matters.
  • Gamut, profiles, rendering intent, paper, and ink behavior can materially change production values.

Useful next steps

CMYK to HEX See how rounded CMYK percentages map back to a screen color. RGB to CMYK Inspect the intermediate digital channels behind the same calculation. CMYK vs RGB Use the guide before treating a generic estimate as print-ready data.