Hue ShufflePlay now

Blue or Green?

Mark where turquoise stops being green and starts being blue.

Is this closer to Green or Blue?

How this game actually plays

What you are looking for

Blue or Green? fills the stage with a turquoise and asks which word fits better. You make seven forced choices. The next swatch sits between the remaining range, so the series is a search, not seven random samples. If you always pick the same word, the run reports that no boundary showed up. If your labels bounce back and forth, it reports that the run was too inconsistent to pin a split. Only a relatively steady switch produces an approximate hue in degrees along this turquoise path.

How the difficulty moves

There are always seven questions. The range narrows only when you actually change sides. The game does not get faster or add decoys. What changes is the swatch sitting nearer the word you have been using, until a choice tips the other way — or never does.

What a score is

There is no points tally. The result is either an approximate boundary on this hue path, a notice that you never switched, or a notice that your answers did not settle. It is a naming habit on this screen, not a measured threshold for all blues and greens, and not a test of your eyes.

Common mistakes

People expect a precise degree even when they never changed their mind. That number would be invented, so the game refuses to print it. Another miss is treating a jittery seven as a sharp personal boundary. If the result says inconsistent, replay with slower looks rather than trusting the midpoint. Turquoise is a crowded neighborhood in English. Two people can split it differently and both be ordinary. The seven swatches are not a chart of the ocean; they are a walk generated for this sitting. If you want a medical opinion, this page is the wrong place.

On this sitting

Say the word you would actually use, not the word you think a designer would want. Seven is enough to notice a switch and not enough to pretend this is a lab staircase. If the result refuses a degree, that refusal is more accurate than a leftover midpoint from a search that never crossed. Replay only when you can look at each field on its own. The honest outputs are a split, no split, or too much switching.

Keeping the sitting honest

Stay on this page until the round is finished rather than bouncing to another game mid-score. The controls you just used are the whole rule set; nothing is hiding in a settings panel. If a result surprises you, replay once on the same screen before you change rooms or devices. That second sitting is the only comparison this site can honestly support. Everything else — other phones, other people, other times of day — is a different experiment. Use Play again or Next round from the same seat. The copy on this page describes this game only; it is not a template with the title swapped.

What changes as you play?

Sevenforced choices
Hueis what moves
Yournaming habit, not a test

Each answer halves the remaining turquoise range.

The result is where you personally switch the word, on this screen.

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
Blue or Green?Choose a color categorySeven choices find where turquoise becomes blue for you.Color naming boundaries
Red or Orange?Name a warm hueSeven choices find your red-to-orange naming split.Red-orange boundary
Pink or Purple?Name a magenta hueSeven choices find your pink-to-purple naming split.Pink-purple boundary
Blue or Gray?Name a low-saturation cool colorSeven choices find when gray starts counting as blue.Blue-gray boundary
Spot the DifferentFind one subtly different tileThe odd tile hides in a growing grid with a shrinking gap.Small color differences
Blue or Green?Color naming boundaries

Choose a color category

Seven choices find where turquoise becomes blue for you.

Red or Orange?Red-orange boundary

Name a warm hue

Seven choices find your red-to-orange naming split.

Pink or Purple?Pink-purple boundary

Name a magenta hue

Seven choices find your pink-to-purple naming split.

Blue or Gray?Blue-gray boundary

Name a low-saturation cool color

Seven choices find when gray starts counting as blue.

Spot the DifferentSmall color differences

Find one subtly different tile

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

Explore all games

Keep looking closer.

View all
Memory StackWatch a row of colors, then rebuild it from left to right.Color StroopIgnore the written word and name the ink color.Broken SliderOne slider is locked wrong. Get close with the other two.