Color Blind Test
ishihara color perception plates test. enter the numbers hidden in the bubble dots patterns.
brain & cognitive tests
select a test to begin. test your mental abilities.
test completed!
your final score is calculated below.
remember the number displayed. type it in when it disappears.
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memorize the highlighted tiles. click them once they hide.
watch the pattern flash and repeat the exact sequence in order.
click 'seen' if the word has been shown in this run, otherwise click 'new'.
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solve as many simple arithmetic operations as possible within 60 seconds.
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solve equations that increase in difficulty. no time limits, 3 lives.
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click the square with the slightly different color shade. 30 seconds timer.
does the font ink color match the color word? 30 seconds.
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identify the numbers hidden in the bubble dots. 5 plates total.
identify if the presented word is a real English dictionary term or fake. 20 words.
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type the flashed words as fast as possible. 30 seconds timer.
select the ink color of the word, NOT the color name itself. 30 seconds.
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press MATCH if the letter matches the one shown 2 letters back. Otherwise click NO MATCH.
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click numbers 1 to 25 in ascending order as fast as possible.
complete a 10-question logical progression evaluation to measure your IQ score.
2-minute rapid version. solve as many logical progression puzzles as possible under pressure.
cognitive age estimator. tests memory retrieval and rapid mathematical calculations.
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test deductive reasoning with word puzzles, order relationships, and syllogisms. 5 questions.
combined recall capacity test. evaluates numeric memory, spatial recall, and audio sequence memory.
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Color Blind Test — Online Ishihara Plates Diagnosis
Take our free online color blind test. Check your red-green color perception using standard Ishihara plate diagrams. Fast results. Always consult a doctor for a certified medical diagnosis.
How the Color Blind Test Works
To take our online color blind test, click the start panel above to display the first visual circle. The test is made of standard digital representations of Ishihara plates, which are circular patterns containing multi-colored dots of varying sizes and brightness. Hidden inside each plate is a number formed by contrasting color shades. You must identify the hidden digit and click the corresponding number on the screen. The test progresses through multiple plates to evaluate your red-green color vision.
Types of Color Blindness Explained
Color vision deficiencies are typically hereditary and arise from a malfunction or absence of specific color-sensitive cone cells in the retina. Red-green color blindness is the most common form, divided into Protanopia (red-blindness) and Deuteranopia (green-blindness), along with their milder anomaly forms. Blue-yellow deficiency (Tritanopia) is far rarer, while total color blindness (Achromatopsia) is extremely rare. Understanding these distinct cone receptor variations helps explain why certain color combinations feel indistinguishable.
What Your Results Mean
Your performance on the Ishihara plate screening suggests your current color vision status. If you identify all numbers correctly, your red-green perception is likely healthy. Missed plates suggest a potential red or green cone deficiency. Compare your findings against the guide below to understand what different plate scores represent. Always remember that display screens can affect how colors appear, so treat these scores as screening indicators.
Ishihara Plate Score Interpretations
| Plates Read Correctly | Perceived Numbers | Estimated Color Vision Status |
|---|---|---|
| 10 out of 10 plates | Reads all digits instantly | Trichromacy (Likely Normal Vision) |
| 7 - 9 plates | Misses red/orange shades | Mild Red-Green Vision Deficiency |
| Under 7 plates | Misses green/brown shades | Moderate to Severe Red-Green Defect |
| 0 plates | Sees only dot patterns | Achromatopsia / Monochromacy Defect |
What to Do Next: Clinical Diagnosis
Since computer monitor calibrations, screen glare, and ambient lighting can alter color contrast, online color tests are not medically certified diagnostic tools. If your results indicate a potential deficiency, it is critical to consult a licensed optometrist or ophthalmologist for a formal diagnosis. Doctors use physical Ishihara booklets under standardized lighting and advanced anomaloscopes to get a precise, medically certified evaluation of your vision.
Frequently Asked Questions
Can an online color blind test serve as a medical diagnosis?
No, this online test is a preliminary screening tool and cannot replace a clinical eye examination. Digital displays vary significantly in color accuracy, contrast settings, and brightness levels, which can distort your results. An official medical diagnosis requires testing by an eye doctor under controlled clinical conditions. If you suspect any color vision deficiencies, schedule an appointment with a professional.
Is color blindness curable or treatable?
Currently, there is no medical cure for inherited color blindness because it is a genetic trait affecting cone cell development. However, many people use specialized color-corrective lenses or glasses to enhance shade contrast in daily life. There are also various mobile applications designed to label colors in real time for accessibility. Most individuals adapt well to color vision differences without treatment.
Why is red-green color blindness more common in men?
Red-green color blindness is more common in men because the genes responsible for red and green color receptors are located on the X chromosome. Since males have only one X chromosome, inheriting a single mutated gene will cause the condition. Females have two X chromosomes, meaning a healthy gene on one chromosome can compensate for a mutation on the other. This genetic structure makes men significantly more susceptible.
What is the difference between Protanopia and Deuteranopia?
Protanopia is red-blindness, caused by the complete absence of red-sensitive cone cells, making red shades appear dark and dull. Deuteranopia is green-blindness, resulting from a lack of green-sensitive cones, which affects how green, brown, and gray hues are distinguished. Both conditions fall under the red-green color vision deficiency category but impact different wavelengths. A professional eye exam can easily identify which specific cone type is affected.
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