Hue ShufflePlay now

Spot the Different

Find the one tile that does not belong.

Start the game to deal a new grid.

How this game actually plays

What you are looking for

Spot the Different deals a grid of tiles that look almost the same. One tile is shifted in color. Your job is to tap that tile. There is no timer and no second chance inside a round: the first tap locks the answer. After you tap, the odd tile is outlined so you can see the gap you caught or missed. Early rounds use nine tiles. Later rounds move to sixteen and shrink the difference, so the odd one hides in a denser field. The game is five rounds long. Replay builds a new grid; the odd tile does not stay in the same seat.

How the difficulty moves

The first round is a coarse difference on a small grid. Each later round keeps the same rule and changes two things: more tiles, and a smaller gap between the odd color and the field. That is why a comfortable first tap can become a slow search by round four. Nothing else is added — no countdown, no extra lives, no hint button. If you play again, expect a new hue family and a new location for the odd tile, not a harder rule set.

What a score is

The score is how many of the five grids you identified correctly on this screen. It is not a ranking of your eyesight and it does not carry over to other games. A miss usually means the gap was smaller than the difference you were willing to commit to, or you tapped a neighbor that looked close enough. Lighting and display settings change that gap as much as the generator does. Treat 4/5 on a dim phone and 4/5 on a calibrated monitor as two different sittings.

Common mistakes

People tap the first tile that feels slightly warm or cool without scanning the whole grid. On the sixteen-tile rounds that habit costs a point because the odd tile is often in a corner you skipped. Another miss is changing your mind after the outline appears and thinking the game will accept a second tap — it will not. Slow down for one full pass, then tap. If you keep missing the same way, raise brightness and sit square to the screen before blaming the generator. When the gap feels invisible, it is usually the field color sitting near a weak part of the panel. Sit square, raise brightness, and take one slower pass before you decide the round is unfair. Five honest rounds on one display tell you more than twenty rushed taps across three devices.

What changes as you play?

Fiverounds in every play
9 to 16tiles as rounds go on
Smallergaps between colors

After you pick a tile, the different one is outlined so you can see what you missed or confirmed.

Replay builds a new grid. The odd tile moves, the gap shrinks, and later rounds use more tiles.

Make a small color journey.

These three routes are only suggested sequences. You can open any of the sixteen games on its own, leave a route halfway, or skip the pairing entirely. Each game keeps its own score on this screen and this sitting. Nothing here adds those scores into a combined rank, a skill grade, or a color-vision result. Play the first game to notice one kind of judgment, then the second to see how that judgment changes when the task is slightly different.

notice

Notice more.

Start at a color-name boundary, then hunt for a single off tile.

Blue or Green? asks you to name a turquoise as one familiar word or the other. Spot the Different then asks you to find a single off tile among many similar ones. Start with the naming game so you feel how a hue can sit on a boundary; then hunt for a tile that is only a little off. The first game is about the word you choose. The second is about a visual difference with no name attached.

Blue or Green?Spot the Different
hold

Hold the shade.

Remember one color, then rebuild another with the previews hidden.

Color Memory shows a target, hides it, then offers six close options. Blind Sliders hides the mix as well, so you rebuild from hue, saturation and lightness numbers only. Do memory first: you still see the choices. Then try blind mixing, where even your own swatch is gone until you reveal it. One task is recognition among near-misses. The other is reconstruction with no preview. Completing both shows whether you hold a shade better when you can compare, or when you mix it unseen.

Color MemoryBlind Sliders
work

Work with color.

Put hues in order, then mix a match with three sliders.

Hue Sorting keeps two end tiles fixed and asks you to swap the middle until the gradient is smooth. Color Matching keeps the target visible and lets you drag three sliders until the mix agrees. Sort first so you feel the slope between two anchors; then mix a single target by hand. Ordering is about relative steps. Matching is about landing on one destination. After the pair you can see whether you are steadier at arranging hues or at steering HSL onto a sample that stays on screen.

Hue SortingColor Matching

Before you compare scores

A score on Hue Shuffle is a count of what happened in this browser, on this display, in this room. Brightness, color temperature, night mode, True Tone, and the kind of panel you are looking at all change how close two colors appear. The same round on a phone and a laptop is not the same stimulus.

Room light and viewing angle matter as much as the hardware. A window behind you, a warm lamp, or glare on glossy glass can hide a difference that was obvious a minute earlier. Sit still relative to the screen if you want two runs to be comparable at all.

Fatigue and attention move the result even when the device does not. A long session, a second monitor, or playing while distracted will scatter your answers. Repeating the same game on one device, with similar light, is the only comparison that has much meaning here.

Do not treat another person's score, or a score from a different phone, as a measurement of your vision. These games are for noticing how you judge color in the moment. They are not a medical exam, not a color-blindness test, and not a calibrated lab result. If you only have a minute, remember three things: same device, similar light, no medical story. Everything else on this page expands those three.

Which challenge should you try next?

Compare how this game asks you to look, then open a neighbor if you want a different kind of judgment.

GameWhat you doWhat makes it differentMain focus
Spot the DifferentFind one subtly different tileThe odd tile hides in a growing grid with a shrinking gap.Small color differences
Speed Color MatchMatch against the clockYou mix from memory against a 10-second clock.Speed and accuracy
Color MatchingRebuild a target colorTarget and mix stay visible while you drag three sliders.Color adjustment
Broken SliderMatch with one control lockedOne slider is locked wrong, so you compensate with the other two.Compensating for a bad channel
Blue or Green?Choose a color categorySeven choices find where turquoise becomes blue for you.Color naming boundaries
Spot the DifferentSmall color differences

Find one subtly different tile

The odd tile hides in a growing grid with a shrinking gap.

Speed Color MatchSpeed and accuracy

Match against the clock

You mix from memory against a 10-second clock.

Color MatchingColor adjustment

Rebuild a target color

Target and mix stay visible while you drag three sliders.

Broken SliderCompensating for a bad channel

Match with one control locked

One slider is locked wrong, so you compensate with the other two.

Blue or Green?Color naming boundaries

Choose a color category

Seven choices find where turquoise becomes blue for you.

Explore all games

Keep looking closer.

View all
Red or Orange?Mark the point where a warm hue shifts from red to orange.Color SequenceWatch pads flash, then tap the same order back.Hue SortingSwap the middle tiles until the gradient runs smoothly.