Color Mapper is a free, browser-based color toolkit that converts between five color models, generates harmonious palettes, checks contrast and print gamut, and more — all without an account.
What is Color Mapper?
Color Mapper is a free, browser-based color toolkit designed for designers and developers. It takes a color input (HEX, RGB, CMYK, HSL, or HSV) and produces outputs such as converted formats, palette harmonies, gradient CSS, contrast ratios, and print gamut warnings. Everything runs client-side; no signup required. The toolkit is developed and maintained by the team at colormapper.xyz.
Key Features
- 18 Format Converters — Convert between RGB, CMYK, HEX, HSL, and HSV with sliders, history, and copy-ready values. Includes RGB to CMYK conversion.
- Palette Generator — Generate six harmony rules (triadic, complementary, analogous, monochromatic, etc.) from one seed color. Lock swatches, regenerate, export as CSS, Tailwind, or JSON.
- Gradient Generator — Create linear, radial, and conic gradients with up to five stops. Copy production-ready CSS.
- Contrast Checker — Check WCAG AA/AAA ratios for any color combination. Get auto-fix suggestions and a full palette matrix.
- Tint & Shade Scale — Generate a Tailwind-style 50–950 ramp from a single HEX, with contrast-checked per step.
- Print Gamut Checker — See how a screen color shifts on a CMYK press, with Delta E and match percentage. Flags out-of-gamut colors.
- Color Blindness Simulator — Preview palettes under deuteranopia, protanopia, and tritanopia.
- Color Wheel — Interactive wheel that updates harmonies live as you drag.
- Palette from Image — Extract dominant colors from a photo entirely in the browser (no uploads).
- Compare Colors — Calculate ΔE2000 perceptual difference between two colors.
Who is it for?
- Graphic designers — Convert CMYK to RGB/HEX for digital mockups, then check print gamut before sending to press.
- Web developers — Export palettes as CSS variables or Tailwind config and ensure accessible contrast ratios across components.
- Print professionals — Use the print gamut checker to preview CMYK shifts and avoid costly reprints.
- UX designers — Simulate color blindness on palettes and verify WCAG compliance across the whole toolkit.
What can you do with Color Mapper?
- Prepress color matching: Use the format converters to get CMYK values from a screen color, then the print gamut checker to see if it shifts on press.
- Building a design system: Generate a tint/shade scale from your brand color, export as Tailwind tokens, and verify contrast for each step.
- Accessibility auditing: Paste any two colors into the contrast checker to get WCAG AA/AAA ratings and auto-fix suggestions.
How does it work?
All tools run in the browser with no server interaction. Enter a color or upload an image for palette extraction. The tool immediately computes results and displays them. Copy values or export code directly; no account needed.
FAQ
Is Color Mapper free?
Yes, every tool is free. No signup, no account, no hidden limits.
What color formats does it support?
HEX, RGB, CMYK, HSL, and HSV. Convert between any of the five models.
Does it check print safety?
Yes, the Print Gamut Checker shows how an RGB color will look when converted to CMYK and warns if it falls outside the printable gamut.
Can I export styles for my codebase?
Yes. Export palettes as CSS custom properties, Tailwind theme.extend.colors, or JSON tokens.
How is this different from other color tools?
Every swatch shows CMYK values and gamut warnings by default, and the toolkit includes dedicated print and accessibility features across all tools.
