DAY 008← All workouts
Hue Hunt
One tile is a slightly different shade. It gets smaller every round.
How to play
- 1Every tile is the same colour — except one.
- 2Tap the odd tile before the bar runs out.
- 3Each round the grid grows and the difference shrinks. Three misses and you're out.
How to play
- 01Every tile is the same colour — except one.
- 02Tap the odd tile before the bar runs out.
- 03Each round the grid grows and the difference shrinks. Three misses and you're out.
Why it works
This is a colour discrimination challenge: how fine a difference in hue you can still pick out. It is a game, not a vision test — your screen, brightness and the light in the room all move the result, so treat the number as a score rather than anything about your eyes.
FAQ
- What round is good?
- Round 7 is sharp and round 9 is exceptional. By then the difference is close to what a phone screen can even display.
- Why does my score change between sessions?
- Screen brightness, night-shift filters and ambient light all shift colour perception. Play in consistent lighting if you want to compare runs.