Colormapped
Color converter

CMYK to RGB Converter

Convert CMYK percentages into approximate digital RGB values.

Real printed output depends on inks, substrate, printer, and ICC profiles.

What this tool does

This tool maps simple CMYK percentages into sRGB-style channel values using a mathematical formula. It is useful for rough screen previews, not for simulating a specific press or printer profile.

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. Convert C, M, Y, and K percentages to fractions.
  2. For each RGB channel, multiply 255 by the remaining color after the chromatic ink and black components.
  3. Round the three channels to integers.
  4. Display the resulting screen RGB value and HEX swatch.

Worked example

Inputcmyk(62% 62% 0% 6%)
Outputrgb(91, 91, 240)

Because the CMYK percentages are rounded, this reverse calculation is close to—but not identical to—the RGB sample used to produce them.

When to use it

  • Create a rough screen preview from simple CMYK percentages.
  • Translate a print-oriented numeric reference into a web-friendly RGB starting point.
  • Compare how rounding changes a CMYK↔RGB round trip.

Accuracy and limits

  • No ICC profile or device characterization is applied.
  • A screen preview cannot reproduce paper, ink density, fluorescence, or press conditions.

Useful next steps

RGB to CMYK Compare the reverse mathematical approximation. CMYK to HEX Get a compact screen-oriented HEX result from the same percentages. CMYK vs RGB Review gamut, profile, paper, and device differences before production.