The 15 Best Colour Palette Generators in 2026

Last updated: August 2026

Most colour tools generate a palette. Very few help you ship one. The gap between "here are five nice hex codes" and "here is a working colour system with accessible text pairings, hover states and a dark mode" is where every one of these tools either earns its place or wastes your afternoon.

Fifteen tools below, sorted by the job. Every one is free or has a usable free tier.

The fast generators

Coolors is the default for a reason. Press space, get five colours, lock the ones you like, press again. It's the fastest path from nothing to a starting point, and the browser extension for pulling palettes off live sites is quietly the best part.

Its weakness is the same as its strength: it generates palettes, not systems. Five swatches with no tints, no shades, no state colours. Fine as a starting point, not an ending one.

Huemint generates palettes in context — against an actual layout, a brand mark, an illustration — rather than as bare swatches. This matters more than it sounds, because colours that look great as a row of rectangles routinely fall apart the moment one of them has to be a background.

Khroma trains on colours you pick during a short onboarding, then generates pairings tuned to your taste. Genuinely different from the other generators, and the typography previews are useful.

The ones that actually build a system

This is the category that matters if you're designing product rather than a poster.

Realtime Colors is the one to open first. It applies your palette to a full, realistic landing page live — headings, body copy, buttons, cards, dark mode — so you're evaluating colour in the only context that counts. It has killed more bad palettes of mine than any critique ever has.

Color Ramp generates accessible colour scales rather than palettes: full tint and shade ramps from a base colour, with contrast handled. If you're building a design system and need blue-50 through blue-900, this is the tool.

AnyGradient builds gradients in OKLCH and Display-P3 rather than sRGB, which sounds academic until you've watched a gradient go muddy grey through its midpoint. Perceptually uniform colour spaces fix that, and this is the easiest way to use them.

Accessibility

Accessible Brand Colors takes your existing brand palette and shows every combination that passes and fails WCAG, as a grid. The value is that it works with the colours you're stuck with rather than telling you to pick different ones.

ButtonBuddy narrows to a specific and genuinely difficult problem: accessible button colours across every state — default, hover, focus, disabled — including the focus ring, which almost everyone gets wrong.

Palettes worth stealing

Color Hunt is a curated library of four-colour palettes, sorted and voted. Not clever, extremely useful, and the fastest way to find something that already works when you have no strong opinion.

Happy Hues is the smartest idea on this list. Rather than showing swatches, it shows a complete example site in each palette and tells you which colour is used where — background, headline, paragraph, button, card. It's a colour tool that teaches colour application, which is the part people actually struggle with.

Adobe Color remains excellent for colour theory work: complementary, triadic, split-complementary rules, plus accessibility checks and extraction from images. Free, no Creative Cloud subscription needed.

Gradient Hunt does the same job for gradients, and

Super Color Palette generates by shifting hue, saturation and lightness systematically.

Color Leap is a historical palette explorer — colours by era, from illuminated manuscripts to mid-century print. Not practical for most product work. Superb for getting out of the same six SaaS blues everyone defaults to.

Chroma rounds it out with straightforward browser-based picking and palette creation.

How to actually pick a palette

1. Start with one colour you're confident about. Usually the brand colour, or a category convention you're choosing to follow or break.
2. Build the neutrals before the accents. Ninety percent of a UI is greys. Everyone spends ninety percent of their time on the accent.
3. Test it on a real layout, not swatches. Realtime Colors or Happy Hues. This step catches most failures.
4. Check contrast before you fall in love. Accessible Brand Colors, then ButtonBuddy for interactive states.
5. Generate the full ramp last. Color Ramp, once the base is locked.

Looking for something specific? We catalogue 116 colour tools in total, including contrast checkers, gradient builders and palette extractors.