Type RGB values and instantly get CMYK. See HEX, RGBA and HSL side by side. Click any format to copy.
✓ Accepts: 255, 128, 64 or rgb(255, 128, 64) or paste from anywhere
Everything runs in your browser - no colors are ever uploaded
Click any code - HEX, RGB, HSL or CMYK - and it's copied instantly, with a quick confirmation.
See HEX, RGBA, HSL and CMYK for the same color side by side, no extra clicks.
Type R, G, B separately, paste "rgb(255,128,64)" as a whole string, or use the picker and eyedropper.
No sign-up, no watermark, convert as many colors as you like.
Type R, G, B values directly, or use the color picker and eyedropper.
HEX, RGBA, HSL and CMYK values appear instantly below the preview.
Tap any code and it's copied straight to your clipboard, ready to paste.
RGB values (red, green, blue in 0-255) are converted to CMYK (cyan, magenta, yellow, key/black) with the standard subtractive-color formula: K = 1 − max(R, G, B), then C, M and Y are derived from how far each channel is from that black level. For example, RGB(124, 58, 237) = cmyk(48%, 76%, 0%, 7%). This tool does the math automatically.
Enter your RGB values in any common format: rgb(255,128,64), 255, 128, 64, or 255 128 64. The tool is forgiving with spacing and punctuation. You can also use the color picker.
No. Every conversion happens locally in your browser. Nothing you type or pick is sent to a server.
Yes - use the CMYK to RGB or CMYK to HEX converters for the reverse direction, or any of the other format converters linked below.
This converter uses the standard on-screen RGB-to-CMYK formula, which is a solid approximation for design and prototyping. For professional printing, check the result against your printer's ICC color profile - real ink and paper can shift the final color.
No. Convert as many colors as you like, for free, with no account required.