Colour by number, online — geometric and mandala designs

Most colour-by-number games rebuild a photo or a pixel-art picture. RainbowShapeArt is different: guided mode colours abstract geometric and mandala artwork, so the reward is watching a pattern's structure emerge rather than uncovering a hidden photo. It's free to start, runs in your browser, and needs no account.

How guided mode works

Each region carries a number that matches a colour in the palette. Tap the colour, then tap the numbered regions to fill them — the shape flood-fills instantly. Prefer to choose your own colours? Switch to freestyle at any time and colour however you like.

Why geometric, not photo-realistic

There's no single "right" picture to reveal. The pleasure is in the pattern itself — the symmetry and structure appearing as you fill — which suits people who find literal colour-by-number apps repetitive. It stays open-ended and calm.

Small breaks or long sessions

Puzzles range from small designs up to intricate ones with hundreds of pieces, and you can pinch to zoom deep into the detail. Colour a few regions on a short break or settle in with a big one — your progress saves itself either way.

More ways to colour

See everything that's free to colour online, or make your own with the mandala maker.