Coolors

Fast palette generator for building and checking colour schemes

AI Design & UIFree planOverseas★★★★☆ 4.0

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What is Coolors?

Coolors is a colour scheme generator. Press the space bar and it produces a palette you can lock, adjust or discard element by element, which makes escaping a colour rut a matter of seconds. Around that core sits a practical toolbox: a contrast checker for accessibility ratios, a palette-from-photo picker, a gradient maker, colour blindness simulation and export to PNG, PDF, SVG, CSS or Adobe swatch libraries. An AI palette generator can work from a text description, but the everyday value is the quick manual loop plus the supporting utilities, which is why it stays open in a browser tab.

Last updated: 2026-09-20. This site only provides an index; for exact features, pricing, and licensing, see the official website.

Key features

Instant palette generation with per-colour locking and adjustment
Contrast checker that reports WCAG-style accessibility ratios
Palette extraction from uploaded photos and reference images
Colour blindness simulator for checking how a scheme reads
Gradient maker and previews of palettes on interface mockups
Export to CSS variables, SVG, PNG, PDF and Adobe libraries

Pros & cons

Strengths

Very fast to generate and refine a palette in the browser
Contrast and simulator tools surface accessibility problems early
Free tier covers most individual colour work

Watch out for

Suggestions drift toward similar hues over a long session
Team and cloud saving features sit behind the paid plan
It picks colours, it does not design the interface for you

Best for & use cases

colour palette exploration, brand colour schemes, accessibility contrast checks, ui palettes

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FAQ

Does Coolors use AI to pick colours?

There is an AI palette generator that works from a text description, but the core experience is manual: generate a set, lock the colours you like and reroll the rest. Most designers work that way rather than prompting for a scheme.

Can it check accessibility?

Yes. The contrast checker reports the ratio between foreground and background colours against WCAG thresholds, and the colour blindness simulator shows how a palette reads for different types of colour vision.

What export formats are supported?

Palettes export as CSS variables, SVG, PNG and PDF, and can be pushed to Adobe swatch libraries. The code exports are usually the ones that matter when handing colours to a developer.