What Is the Color Perception Test?
The Color Perception Test on ReflexBenchmark is a hands-on color-ordering game. You are given rows of colored tiles whose starting and ending hues are fixed. The tiles in between have been shuffled. Your task is to swap them into a sequence that looks like a smooth change from one color to the next, then check how close your arrangement is to the intended order.
This version focuses on hue-gradient ordering, rather than asking you to find a single different shade in a grid. It gives you a score out of 100 based on tile positions and a row-by-row breakdown of the remaining errors. The result also records how many swaps you used and how long your session took. You can play on a computer or a touch device.
Color sorting can be an interesting way to explore how subtle adjacent colors appear on your own screen. However, an online game is not a calibrated examination of your eyes. Display settings, ambient lighting and the colors your device can reproduce all influence what you see.
How to Play: Sort the Hue Tiles
- Select a difficulty. Easy contains one gradient row, Standard contains three, and Hard contains five. Standard is selected initially, but you can choose another difficulty before starting.
- Press Start Test. The timer starts when you press Start, not while you are reading the instructions. Each row appears with two fixed reference tiles and ten movable tiles.
- Compare neighboring colors. Look for abrupt changes in the gradient. Select one movable tile, then another movable tile in the same row to swap their positions.
- Recheck both ends. The first and last tiles are marked FIX and cannot move. Use them as anchors when deciding how the interior hues should progress.
- Choose Check Arrangement. When you are satisfied, submit the current ordering. The page computes your score and opens the result panel.
There is no countdown that forces you to finish by a preset deadline. The clock measures elapsed time, but finishing quickly does not add bonus points. A swap counts as one move regardless of whether it improves the gradient. The game only swaps two tiles within the same row; it does not move tiles across rows.
Easy, Standard and Hard: What Changes?
The three modes increase the amount of color ordering you need to do, not the number of correct answers in a quiz. Each row contains 12 displayed tiles: two fixed endpoints plus ten tiles you can rearrange. That means Easy has ten movable tiles, Standard has 30 across three rows, and Hard has 50 across five rows.
Easy: one gradient
Easy begins with a red-to-yellow sequence. It is a useful place to learn the two-tap swapping interaction and see how the endpoints help you judge an ordering. The shorter board is also convenient for checking whether your screen brightness makes adjacent tiles distinguishable.
Standard: three gradients
Standard extends the task through red-to-yellow, yellow-to-green and green-to-blue transitions. You have more tiles to consider, but each row can be solved independently. It is the default choice when the page first opens.
Hard: five gradients
Hard adds blue-to-purple and purple-to-red rows. You must keep track of more similar-looking colors and more possible swaps. The increased number of rows also changes the scoring denominator, so compare attempts in the same difficulty rather than assuming that a raw error total means the same thing across modes.
How the Color Perception Score Is Calculated
The main result is an accuracy score from 0 to 100, where higher is better. The browser knows the intended position of each tile. For every row, it adds the absolute distance between a tile's correct position and its submitted position. These distances are called hue error units on this page. The fixed endpoint tiles contribute zero because they stay in their intended positions.
The score is computed as 100 × (1 − total hue error ÷ (60 × number of rows)). The result is rounded to the nearest whole number and constrained to the 0–100 range. A perfectly ordered gradient has zero error and scores 100. A larger position error lowers the score. This is the site's own game formula, not a standardized clinical score.
Suppose you select Standard and finish with row errors of 4, 8 and 12 units. Total error is 24. Since Standard has three rows, its formula uses 60 × 3 = 180 as the denominator. Your score is 100 × (1 − 24/180) = 86.67, displayed as 87/100.
The three result bars would show 4, 8 and 12, respectively. This is a mathematical example, not an average score, recommended cutoff or prediction of how other players perform.
The number of swaps and your finishing time are displayed separately. The formula does not subtract points per swap or award points for faster completion. You may take longer to make a careful ordering, but that extra time will still appear in your personal result.
Understanding the Result Chart and Share Card
After you press Check Arrangement, the result panel shows the score, total hue error units, elapsed seconds and number of swaps. Its bar chart contains one bar for each row played. A bar represents the total tile-position error for that row, so a shorter bar is generally better. If you complete Easy, you see one bar; Standard produces three; Hard produces five.
These are recorded errors from the arrangement you submitted, not decorative bars or a simulated population chart. The downloadable result card uses the same row-error values, alongside your score, row count, swap count and elapsed time. When a bar represents zero error, the display may still leave a tiny visible mark to keep the row identifiable.
The page may continue to show Rank Pending even after your result has been saved. Saving a score means the submission was accepted; it does not establish a representative ranking, a color-vision percentile or a comparison with people of the same age. Do not interpret the graph as a diagnostic profile.
Why Color Order May Look Different Across Devices
Unlike a paper-based task viewed under controlled lighting, this game generates colors using the browser and your display. Small differences between neighboring hues can appear more pronounced or less visible depending on several practical conditions.
- Screen brightness and contrast: A dim screen may make some neighboring colors harder to distinguish. Extreme brightness can also wash out subtle transitions.
- Night mode and color filters: Blue-light reduction, accessibility filters and other display adjustments can change the intended appearance of the gradients.
- Screen type and color gamut: Different phones, laptops and external monitors can reproduce the same browser color values differently.
- Reflections and room lighting: Glare or strongly tinted light can affect what you see, especially near the edges of a display.
- Viewing conditions: Distance, angle and display scaling can change how easily you compare the small tiles.
When tracking your own progress, try to keep the same device, screen settings, lighting and difficulty. A change in score after switching displays may reflect the conditions rather than a change in your visual ability.
Practical Tips for Smoother Hue Gradients
Begin with the most obvious mistake: a tile that sharply interrupts an otherwise gentle progression. Fixing one large jump often makes other mismatches easier to spot. Then compare neighbors rather than trying to remember each color's exact appearance. The fixed endpoints are useful reference points, especially on the first and last few movable tiles.
Work row by row. Because swaps are confined to a single gradient, solving one row before moving to another can make the task less confusing. If two neighboring hues seem almost identical, first organize the more distinct colors around them, and then revisit the subtle pair. A brief glance away from the screen may help you return with a fresh view, but it will not make the test a calibrated assessment.
Try to avoid changing brightness or enabling a color filter midway through a run. If you are experimenting with different displays, treat those attempts as different conditions and do not combine them into a personal performance trend. The most useful comparison is often your own repeated result at the same difficulty, with notes about the setup.
What This Online Test Can and Cannot Tell You
This task can tell you how accurately you arranged these particular digital hue gradients under the conditions of your attempt. It gives immediate feedback about ordering and makes your row-level errors visible. It cannot diagnose color blindness, identify an eye disease, determine a clinical hue-discrimination threshold or produce an age-adjusted population score.
The game is inspired by the general idea of putting hues into order, but it is not the official Farnsworth–Munsell 100 Hue Test. It does not use that test's standardized hardware, scoring, reference conditions or normative interpretation. Anyone concerned about a change in color vision should seek advice from a qualified eye-care professional rather than drawing a medical conclusion from a browser result.
Frequently Asked Questions
How do I take the Color Perception Test?
Choose Easy, Standard or Hard and press Start Test. Each row has two fixed endpoint tiles and ten movable ones. Select any two movable tiles within the same row to swap them. Press Check Arrangement when you are ready to see your score.
What is a good score on this test?
A score of 100 means every movable tile was in its intended position on this game's gradients. There is no established clinical cutoff or universal “good” score. If you compare your own attempts, use the same difficulty, display and lighting.
How are hue error units and the 0–100 score calculated?
For each tile, the game measures how many positions it is away from the intended slot and adds those distances across the played rows. The score is 100 × (1 − total error ÷ (60 × rows)), rounded to a whole number. Less error means a higher score.
Does finishing faster or using fewer swaps improve my score?
No. Time and swaps are reported as separate stats, but neither changes the 0–100 accuracy formula. The final tile arrangement determines the accuracy score.
What is the difference between Easy, Standard and Hard?
Easy has one color gradient with ten movable tiles. Standard has three rows, and Hard has five. Each row also has two fixed reference tiles. Because the number of rows changes the scoring denominator, compare attempts within the same difficulty.
Why do the same colors look different on my phone and monitor?
Displays vary in brightness, color gamut, calibration and viewing angle. Night-light settings, accessibility color filters, glare and room lighting can also change how neighboring hues appear. Use consistent conditions for more meaningful practice comparisons.
Can this online test diagnose color blindness?
No. It is a non-standardized digital hue-ordering game, not a clinical color-vision examination or the official Farnsworth–Munsell 100 Hue Test. If you have concerns about your color vision, consult an eye-care professional.