Color Blind Test
Screen your color vision with Ishihara-style dot plates. Identify the hidden number in each plate to check for red-green and blue-yellow color vision deficiencies.
This is a screening tool, not a medical diagnosis. For a definitive assessment, consult an eye care professional.
You will see 12 dot plates. For each plate, type the number you see or indicate that no number is visible.
Related Tests
How It Works
- Click Start to begin the color vision screening.
- A circular plate filled with colored dots appears. A hidden number is formed by dots of a different color.
- Type the number you see, or click “I can't see a number” if nothing is visible.
- Continue through all 12 plates. Each tests a different type of color distinction.
- View your screening results and interpretation.
Understanding Your Results
This screening uses plates designed to test different types of color vision. Control plates should be visible to everyone. Red-green plates test for protanopia and deuteranopia (the most common forms of color blindness, affecting about 8% of men and 0.5% of women). Blue-yellow plates test for tritanopia, a rarer form of color vision deficiency.
Missing multiple plates of the same type may indicate a specific color vision deficiency. However, screen calibration, ambient lighting, and display quality can all affect results. This screening is not a substitute for a professional eye exam.
Tips for Accurate Results
- View the test in good lighting — avoid glare on your screen.
- Use a properly calibrated display with brightness and contrast at normal levels.
- Do not use night mode, blue light filters, or color-adjusting software during the test.
- If you suspect a color vision deficiency, consult an eye care professional for standardized Ishihara or Farnsworth testing.