AI colour palette generator
Free client-side AI colour palette generator web utility.
AI Color Palette & Design Harmony Generator
Generate balanced, accessible 5-color palettes using perceptual color science, harmony algorithms, and curated theme models with instant CSS and Tailwind exports.
:root {
--color-1: #0f172a; /* Slate Navy */
--color-2: #2563eb; /* Royal Blue */
--color-3: #38bdf8; /* Sky Cyan */
--color-4: #f1f5f9; /* Cloud White */
--color-5: #10b981; /* Emerald Accent */
}About this tool
How to use it
- Select your preferred color harmony model (Oklab Perceptual, Analogous, Complementary, Triadic, or Monochromatic).
- Choose a curated aesthetic theme preset or hit Generate (or press Spacebar) to create fresh harmonized palettes.
- Click the lock icon (🔓) on any swatch you love to preserve it while regenerating the remaining colors.
- Export your custom palette instantly as CSS Custom Properties, Tailwind CSS configuration, or JSON.
Why it matters
Harmonious color combinations create polished, professional user interfaces. Algorithmic generation using perceptual color spaces avoids muddy contrast and clashing saturation across web design projects.
When to use it
Use this tool when designing new websites, creating brand style guides, setting up Tailwind design tokens, or illustrating graphics.
Common questions
How does the color lock feature work?
Clicking the lock button freezes that specific color in place. When you hit Generate or press Space, the algorithm keeps all locked colors and mathematically harmonizes the remaining unlocked swatches around them.
What is the Oklab Perceptual harmony model?
Oklab is a modern color space designed to mimic human eye color perception accurately. It prevents the hue shifts and uneven perceived lightness common in traditional HSL/RGB models.
Can I use the generated palettes commercially?
Yes. All generated color codes and exported CSS/Tailwind configurations are completely free for personal and commercial applications.
Does this tool require external internet APIs?
No. All color math, harmony rotations, and hex conversions run 100% locally in your browser memory.