File ConversionColor ConversionFree Tool
RGB to CMYK
Convert RGB values to approximate CMYK percentages using the standard formula — a screen-to-print estimate, not a color-managed proof.
How to Use RGB to CMYK
- 1Enter R, G, B values separated by commas (e.g. 79, 70, 229)
- 2Click Convert
- 3Copy the approximate CMYK percentages
Frequently Asked Questions
Three comma-separated numbers from 0-255, e.g. "79, 70, 229" for red, green, and blue.
Not exactly — this uses a standard mathematical formula, not your specific printer's ICC color profile, ink, or paper — for color-critical print jobs, request a proof from your print shop.
No — the calculation happens entirely in your browser.
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HEX to CMYK
Convert a HEX color code to approximate CMYK percentages using the standard RGB-to-CMYK formula — a screen-to-print estimate, not a color-managed proof.
CMYK to RGB
Convert CMYK percentages to approximate RGB values using the standard formula — a print-to-screen estimate for digital use.