Hue Test

About Hue Test

This free color game challenges you to notice small differences in hue. Arrange shuffled chips into a smooth gradient, or find the one tile that does not match its neighbors—for entertainment and practice, not as a clinical vision exam or diagnosis.

In Hue Line you receive five rows of chips. The end chips of each row stay fixed as anchors; the chips between them are shuffled. Tap one chip and then another to swap, and keep refining until the row flows evenly from end to end. Submit to see which chips were out of place and how the row scored. Early rows use fewer movable chips across a wide band of color; later rows pack more chips into a narrower band so neighboring steps become subtle.

Odd Hue Out is the timed twin. A grid of nearly identical tiles appears with a single shifted shade. Tap the odd one to advance. Grids grow and differences shrink as you climb, and a wrong tap costs three seconds on the sixty-second clock.

Daily Hue gives everyone the same five Hue Line rows from the calendar date, which makes sharing emoji-style summaries with friends straightforward. All personal bests remain in your browser.

Human hue discrimination varies with lighting, screen calibration, fatigue and individual differences. A consumer LCD is not a laboratory display, so treat scores as a fun benchmark on your device rather than a clinical result. If you are concerned about your vision, speak with a qualified professional—this page cannot replace that.

Play in short sessions. Gradient sorting rewards patience more than frantic swapping, while the odd-one-out mode rewards quick peripheral scanning. Together they make a compact color warm-up for designers, students or anyone who likes careful looking.

Designers sometimes use gradient sorting as a warm-up before palette work, the same way musicians run scales. You are not measuring a client deliverable here; you are waking sensitivity to small steps along a hue wheel.

Lighting matters. Cool white office LEDs and warm evening lamps shift how neighboring chips look, especially on later narrow rows. If a Daily Hue score plunges after you move rooms, check the light before blaming your eyes.

Color names in chat ("more teal", "less purple") become easier when you have just practiced ordering chips. That practical carry-over is a nice side effect of a game that otherwise exists purely for fun.

How to Play Hue Test

Choose Hue Line, Odd Hue Out or Daily Hue.
Hue Line: tap a chip to lift it, then tap another to swap. Dotted end chips never move.
When a row looks evenly graded, press Submit row (or Enter). Crosses mark chips that were misplaced.
Odd Hue Out: tap the single tile whose shade differs before the timer ends.
Keyboard: arrows move the cursor, Space selects or swaps, Enter submits.

Hue Test Rules

Each Hue Line run has five rows; each row can be submitted once.
Anchor chips at both ends of a row cannot move.
Odd Hue Out lasts 60 seconds; a wrong tap subtracts 3 seconds and briefly outlines the correct tile.
Daily Hue rows are generated from your local date and change at midnight.

Hue Test Scoring

A Hue Line row starts at 100. Chips lose points when their neighbors are not the true neighbors, so large displacements cost more than tiny swaps.
Your run score aggregates the five rows.
Odd Hue Out scores by how many correct odd tiles you find before time runs out.
Daily results can be copied as a compact summary without listing every chip.

How Gradient Rows Are Scored

Each row begins at a perfect hundred. Points fall when a chip sits beside neighbors that do not belong next to it in the true order. A chip that is only one slot away loses less than a chip that has wandered far down the row.

Because anchors stay fixed, you always have two trusted colors to judge against. Use them early to block out the rough order before fine swaps.

Submitting locks the row. Take an extra second on later narrow bands; those chips are meant to look almost alike.

Playing Fair With Friends

Daily Hue is the mode meant for sharing. Copy the summary after you finish and compare totals without listing every chip order.

Agree on roughly similar brightness before competing. A dim phone beside a bright monitor is not a fair duel.

Remember again: this is not a clinical color-vision instrument. Keep the tone playful.

Limits of a Browser Color Game

Browsers, OS color management and panel technology all sit between you and the intended chip colors. Two friends can see slightly different steps on the same Daily Hue row.

That is another reason not to treat results as medical data. They are comparable enough for a casual chat, not for a diagnosis.

If a row looks impossible, bump brightness or step away for a minute. Adaptation after staring is real and reversible.

Hue Test Tips & Tricks

Sort roughly first, then fine-tune neighboring chips.
Compare each chip to both anchors, not only to its immediate neighbor.
On narrow later rows, increase screen brightness if it is safe for your eyes.
In Odd Hue Out, soft-focus the whole grid; the odd tile often pops in peripheral vision.
Take breaks—staring at similar colors fatigues judgment quickly.
Use the same monitor when comparing daily scores across a week.
Squint slightly on hard rows; soft focus sometimes reveals order better than hard staring.
Undo a swap immediately if the row suddenly looks worse—trust the first impression.