About Hue Blender
Your Free Online Color Tool
What is Hue Blender?
Hue Blender is a free, browser-based color tool built for designers, artists, and developers who work with color every day. Whether you're mixing pigments for a painting, building a design system, or checking accessibility compliance, Hue Blender gives you the right tools without any sign-up or cost.
At its core, Hue Blender's color mixer uses the Kubelka-Munk spectral model — the same physics-based approach used in professional paint formulation software. This means when you mix red and blue, you get results that look like mixed paint, not just an average of two hex values. The tool also offers a comprehensive combinations database, gradient builder, palette generator, color shades, format converter, and WCAG contrast checker.
Hue Blender is designed to be fast, accurate, and respectful of your privacy. No account is needed, your color data stays in your browser, and all tools are entirely free for personal and commercial use.
Features
Color Mixer
Realistic pigment mixing using the Kubelka-Munk spectral model for true paint-like blending.
Color Converter
Convert between HEX, RGB, HSL, CMYK, Pantone, and RAL formats instantly.
Gradient Generator
Create smooth CSS gradients with up to 8 color stops and export ready-to-use code.
Contrast Checker
Check WCAG AA and AAA accessibility compliance for any text/background color pair.
Color Shades
Generate a full range of tints and shades for any base color in one click.
Random Color
Discover new color inspiration with a random color generator and instant code output.
Combinations
100+ curated guides answering what color X and Y make together, with visual previews.
Blog
Color theory articles, design guides, and pigment science explained for all skill levels.
Frequently Asked Questions
What is Hue Blender?
Hue Blender is a free online color tool for designers, artists, and developers. It provides color mixing, conversion, palette generation, gradient creation, contrast checking, and more — all in one place.
Is Hue Blender free?
Yes, Hue Blender is completely free to use. All tools are available without registration, subscription, or payment.
What color models does Hue Blender support?
Hue Blender supports HEX, RGB, HSL, CMYK, Pantone (approximate), and RAL (approximate) color formats across its conversion and mixing tools.
How does the color mixer work?
The color mixer uses the Kubelka-Munk spectral reflectance model to simulate realistic pigment mixing. Unlike simple RGB averaging, this model accounts for how light interacts with physical pigments, producing results closer to what you'd see mixing real paint.
Can I use Hue Blender for commercial projects?
Yes, you can use any colors, palettes, gradients, or outputs from Hue Blender in commercial projects without restriction.