Huekle

About Huekle

Huekle is a collection of short daily games that train how finely you perceive colour. In the title game, Huekle, you have five tries to match today's colour. Each game gives one puzzle a day, numbered (puzzle 276 on 3 October 2026), and the same puzzle goes to everyone.

The other games come at the same skill from different sides. Hueddle asks you to find the one different shade, Huesort to swap shuffled shades into a smooth gradient between two locked ends, Huemory to repeat a colour sequence and Huetween to pick the colour halfway between two. Others include a 30-second speed round, a warmer-or-cooler streak, Hueseam, which hides a seam in a colour bar, and Huewheel, which asks for complementary, analogous or triad relationships on the colour wheel. Huefork estimates your just-noticeable difference, the smallest shade step you can tell apart, as a Delta-E number; a lower score means sharper perception.

Every game has a Daily challenge and a Playground for practice, a short how-to-play with an example, and links to guides that explain the theory behind it. The site runs in many languages, needs no login or install and keeps everything on your device. The daily games and guides are free; an optional Personal Pass adds progress tracking, and there are tools for teachers. The same makers run sister sites for colour (Huekle), pitch (Hearkle) and rhythm (Chronkle).

How to play Huekle

1. Open Huekle and pick a game from the menu, starting with Huekle itself.
2. Read the short how-to-play or watch the example.
3. Play the Daily challenge: listen or look, then adjust and lock in your answer.
4. Use the closeness score and hint after each try to get nearer.
5. Share your result and work through the other games of the day.

Tips

• Turn up screen brightness and avoid night-shift filters, which shift colours.
• Play the speed rounds last, once your senses are warmed up.
• Use the Playground to practise a game before its daily puzzle.
• Read the linked guide for a game you find hard: it explains what to listen or look for.

Questions