Look at each image and note what number you see. Tap Show Answer to check. (For reference only.)
The test is complete.
Color Blindness / Weakness Test – Quick Color Vision Check
Use simple plate images to get a rough idea of how you see color.
This page follows a common screening style based on well-known color vision tests.
Ishihara-style plates for number/pattern recognition—screening only. See an eye specialist for a formal diagnosis.
📌 What Is the Color Blindness / Weakness Test?
This screening helps estimate color blindness and color weakness (color vision deficiency). Many plates use dots of different colors so you try to see a number or shape hidden in the pattern.
A widely used format is the Ishihara test.
🧠 What Is Color Vision Deficiency (Color Blindness / Weakness)?
Color vision deficiency means reduced ability to distinguish certain colors. It is often inherited and more common in people assigned male at birth.
- Red–green deficiency (most common)
- Blue–yellow deficiency
- Complete color blindness (very rare)
📋 How to Use
- Tap Start Test below.
- Look at each plate and note what number or pattern you see.
- Tap Show Answer to check, then continue. Ten plates are drawn at random from twenty; Retry may pick a different set of ten.
💡 Example
With typical color vision, numbers or lines on Ishihara plates often look clear. With red-green deficiency, some plates may show no number or a different one.
This screen is for reference only—see an ophthalmologist for accurate testing and diagnosis.
📊 How to Read the Result
The activity helps you notice how well you read the hidden figures on each plate.
If you often miss or misread numbers or patterns, you may have a color vision issue worth discussing with a specialist.
⚠️ Important Notice
This test is for reference only and cannot replace a medical diagnosis. For accurate assessment, you need an examination by a qualified eye care professional.
💡 When This Test May Help
- You feel unsure telling colors apart
- Your work depends on reliable color discrimination
- You want a quick informal self-check before seeing a doctor
❓ Frequently Asked Questions (FAQ)
- Q. Is this test accurate?
- It is a reference screening. Accurate diagnosis requires clinical testing at a medical facility.
- Q. Is color blindness common?
- Roughly about 8% of people assigned male at birth and about 1% assigned female at birth have some form of red-green deficiency—so it is fairly common.
- Q. Why can’t I see the number?
- If you cannot distinguish certain colors, the hidden figure may disappear or look wrong to you.
- Q. Is it accurate on mobile?
- Screen brightness, night mode, color temperature, and calibration can change how plates look—results can vary by device and settings.
- Q. Can it be cured?
- Most cases are inherited; learning to adapt matters more than a “cure.” Discuss options with an eye specialist if needed.
👁️ Use Ishihara-style plates as a rough check only. This does not replace medical diagnosis—see an ophthalmologist if you have concerns.