One tile is a little different. How sharp is your eye for color?
All color tools
Shared challenge · Same colors and settings as the original.
Round1 / 12
Correct0
ChallengeUntimed
One tile has a different shade. Choose it.
Spot small differences between shades
- Play twelve untimed rounds, survive with three lives, or find as many shades as possible in a timed sprint.
- Optional Challenge options let you choose a 3×3 to 7×7 grid and lightness, saturation, hue, or mixed variations. Timed sprint also offers 15, 30, or 60 seconds. Daily and shared challenges keep those choices.
- Choose the one tile with a different shade. The next round becomes more subtle.
- After each guess, compare the two color codes and their perceptual difference. Play again starts a fresh challenge. Share challenge sends the same settings and shades; Copy score includes your completed result and a challenge link.
- Sprint rounds advance automatically after brief feedback. Untimed modes let you review each answer before continuing.
Look across a row, then down each column, to spot the small change in lightness. Screen brightness and ambient light affect the experience; this game is not a diagnostic test.