Free Color Palette Generator for Designers
Picking colors that look good together is harder than it sounds. You've got a blue you like, but what goes with it? A color palette generator creates harmonious color combinations based on color theory — so you don't end up with a website that looks like a crayon explosion.
I'm a developer, not a designer. This tool is the reason my projects don't look terrible.
How Color Harmony Works
Colors that "go together" aren't random — they follow mathematical relationships on the color wheel. The generator uses these relationships to create palettes that feel balanced:
- Complementary — opposite colors (blue and orange). High contrast, bold look.
- Analogous — neighboring colors (blue, teal, green). Calm, cohesive feel.
- Triadic — three evenly spaced colors. Vibrant and balanced.
- Split-complementary — one color plus the two colors adjacent to its complement. Nuanced but still striking.
You don't need to know any of this theory to use the tool — just pick a starting color and it generates palettes using each method. But knowing the basics helps you pick the right palette for your project.
How to Use the Generator
Start with one color — your brand's primary color, a color you like, or let the tool suggest a random starting point. It instantly generates five-color palettes using different harmony rules. Click any palette to see HEX, RGB, and HSL values for every color.
You can lock colors you want to keep and regenerate the rest. This is great when you have a brand color that's non-negotiable and need to build a palette around it.
Building a Brand Palette
For a website or brand, you typically need five colors: a primary, a secondary, an accent, and two neutrals (a dark and a light). The color scheme generator gives you exactly this structure.
Don't go wild. Most of your site should be the neutral colors. The primary color is for key elements — headers, buttons, links. The accent is for highlights and CTAs. Restraint is what separates good design from overwhelming design.
Accessibility Check
Pretty colors mean nothing if people can't read your text. The tool includes contrast ratio checking — it tells you if your color combinations meet WCAG accessibility standards. This matters for text readability, especially for users with visual impairments.
Aim for at least 4.5:1 contrast ratio for body text and 3:1 for large headings. The generator flags combinations that don't meet these thresholds so you can adjust before building anything.