Convert any color between five common formats: RGB, HEX, CMYK, HSV and HSL. Edit any one field and every other field plus the swatch update instantly, so you can move between screen colors (RGB/HEX/HSL/HSV) and print colors (CMYK) without doing the math by hand. You can also pick a color visually with the native color picker.
CMYK is derived from RGB with a standard percentage conversion — it is a device-independent approximation and may differ slightly from a specific printer profile. All conversion happens locally in your browser, so nothing is uploaded.