Hue Tubes: Color Sort Puzzle

Sort the colors. Clear the tubes. Relax.

Hue Tubes is a calm, satisfying color sort puzzle. Pour colored liquid between tubes until every tube holds a single color. Simple to pick up, surprisingly clever to master.

WHY YOU'LL LIKE IT

• Every level is solvable — guaranteed
Levels are generated and then verified by a real solver before you ever see them. You'll never get stuck on an impossible board.

• Stuck? Get a real hint
The hint button doesn't guess. It runs the solver and shows you a move that genuinely leads to a solution.

• Unlimited levels, gentle difficulty curve
Start with three colors and work your way up to twelve. The puzzles keep coming.

• Undo anything
Made a mistake? Step back as far as you like. No penalties, no timers, no pressure.

• No ads. No sign-up. No tracking.
No accounts, no interruptions, no data collection. Just the puzzle. Plays fully offline.

HOW TO PLAY

Tap a tube to lift it, then tap another tube to pour. You can pour onto an empty tube, or on top of a matching color. Each tube holds four units. Sort every color into its own tube to win.

Perfect for winding down, focusing your mind, or filling a few quiet minutes.