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Converter Tools

CMYK to RGB

Convert CMYK colour values to RGB integers and the CSS rgb() string. Useful when adapting print colour specifications for use in web design, canvas APIs, or JavaScript colour libraries.

Last updated: May 28, 2026

Client-Side Processing
Input Data Stays on Device
Instant Local Execution
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What is CMYK to RGB?

CMYK describes colour as percentages of cyan, magenta, yellow, and black ink. RGB describes colour as intensities of red, green, and blue light on a screen. Converting between the two models lets you take a colour defined in a print context and use it in a digital or web context.

The conversion goes through a standard mathematical formula that maps 0–100% CMYK values to 0–255 RGB integers.

How to Use CMYK to RGB

1

Enter C, M, Y, K values as percentages (0–100)

2

The R, G, B values and CSS rgb() string appear instantly

3

Copy the output for use in CSS, SVG, or a colour library

Common Use Cases

  • Developers implementing brand colours from a print style guide in CSS or SVG.
  • Designers converting Pantone-matched CMYK specs to RGB for screen mockups.
  • Engineers feeding RGB values into canvas drawing APIs or colour processing libraries.
  • Anyone bridging a print-first workflow into a digital-first design system.

Example Input and Output

Converting a CMYK print value to its RGB screen equivalent.

CMYK input
C:76, M:47, Y:0, K:4
RGB output
rgb(59, 130, 246)

Need HEX?

Use the CMYK to HEX tool if you need the #RRGGBB format instead of integer RGB.

Browser-side only

Conversion runs locally in your browser.

Frequently Asked Questions

What input range does CMYK use?

0 to 100 for each channel (percentage). 0% means none of that ink; 100% means full ink.

What range does RGB output?

0 to 255 for each channel.

Is my data sent to a server?

No. All conversion runs in your browser.

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