Find the Different Word
Scan grids of words to find the odd one out.
Play now →Color Shade Test
One tile in the grid is a slightly different shade of the same color. Click it, and the next level gives you more tiles and a smaller difference. How sharp are your eyes, really?
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Level 1 — find the different shade
One block is a slightly different shade — click it!
How to play
- Study the grid — every tile is the same color except one.
- Click the tile with the different shade to clear the level.
- Each level adds tiles and shrinks the shade difference.
- One wrong click ends the run; your score is the levels you cleared.
Frequently asked questions
How does the color shade test work?
Every tile in the grid shares one color — except a single tile whose lightness differs slightly. Click it to advance. Each level grows the grid and shrinks the difference, from an obvious gap to nearly invisible.
What is a good score?
Three to five levels is typical. Six to eight shows keen color discrimination, and twelve or more is exceptional — by then the difference is a few percent of lightness on a crowded grid.
Why do some people spot shades faster?
Cone density in the retina, lens yellowing with age, and even how much leafy green you eat all nudge color discrimination. Practice also matters: painters and photo editors learn to scan luminance rather than hue.
Any strategy for the hard levels?
Unfocus slightly and compare tiles as groups — the odd one often pops as a texture difference. Row-by-row scanning works too, and trusting your first instinct beats double-checking: your eye catches it before your mind does.
Is this a color blindness test?
No — it only varies lightness, which most color-vision deficiencies see normally. It trains luminance discrimination, not hue classification. For actual color-vision screening, look at an Ishihara plate set.