Overview
Convert a CMYK color value straight into a 6-digit HEX code in one step, using the standard device-independent CMYK-to-RGB-to-HEX formula. CMYK is a distinct, subtractive color model built around how ink mixes on paper (cyan, magenta, yellow, and black), rather than the additive red/green/blue mixing HEX and RGB describe - so getting from one to the other isn't a reinterpretation of the same numbers, it's a real conversion between different color models. This is a mathematical approximation, the same one most online color tools use - it doesn't account for a specific printer's ICC color profile or actual ink behavior, so treat the result as a close approximation for screen-to-print planning, not a color-accurate proof of what a printer will produce. A live swatch shows the result so you can sanity-check it visually. Runs entirely client-side.
Best for: Getting the HEX code for a CMYK color spec without a separate RGB round trip
How to use this tool
- Enter your CMYK value. e.g. cmyk(0%, 100%, 100%, 0%), each channel from 0-100%.
- Converted via RGB. C, M, Y, K are converted to RGB using the standard formula, then RGB to a 6-digit HEX code.
- See the result and swatch. The HEX code updates live, with a color preview to confirm it looks right.
Frequently asked questions
With K at 0%, the formula reduces to R=255x(1-C), G=255x(1-M), B=255x(1-Y). Zero cyan means full red (255), while full magenta and full yellow zero out green and blue, giving 255,0,0 - pure red, #FF0000.
No - this uses the standard device-independent CMYK formula, not a specific printer's ICC color profile. Real print output depends on the printer, ink, and paper, so treat this as a close approximation for planning, not a color-accurate proof.
The RGB to CMYK Converter goes both directions between RGB and CMYK. This tool skips straight from CMYK to HEX in one step, which is convenient when HEX (not RGB) is what you actually need next, like pasting a color into CSS.