Free Colorblind Test Online
Take our free Ishihara color vision test to check for red-green colorblindness, deuteranopia, and protanopia. Get instant results and learn about different types of color vision deficiency.
About the Colorblind Test
Our free online colorblind test uses Ishihara color plates to detect red-green color vision deficiency. This is the same test used by eye doctors to diagnose deuteranopia (green-blindness) and protanopia (red-blindness). Take the test now to check if you have normal color vision or may be colorblind.
Types of Colorblindness
Learn about different types including Protanopia, Deuteranopia, and Tritanopia.
Color Vision Test
Take our comprehensive test to check your color vision capabilities.
Helpful Tools
Discover tools and resources to help with daily tasks and color identification.
Design Guidelines
Best practices for creating colorblind-friendly designs and interfaces.
Statistics & Facts
of men are colorblind
That's approximately 1 in 12 men worldwide
of women are colorblind
Approximately 1 in 200 women have color vision deficiency
inherited condition
Most cases are genetic, passed through the X chromosome
Why Take a Colorblind Test?
Many people have color vision deficiency without knowing it. An online colorblind test can help you:
- Identify red-green colorblindness early - The most common type affects how you see reds and greens
- Understand your vision better - Learn whether you have deuteranopia, protanopia, or normal color vision
- Get accommodations - Many schools and workplaces offer support for those with color vision deficiency
- Make informed career choices - Some professions require normal color vision
Our Ishihara-style test is completely free, takes only 2-3 minutes, and provides instant results. While this online test is a helpful screening tool, we recommend consulting an eye care professional for a comprehensive diagnosis.
Frequently Asked Questions
How accurate are online colorblind tests?
Online colorblind tests like ours are useful screening tools, but their accuracy can be affected by screen settings, lighting conditions, and display calibration. Professional Ishihara tests administered by eye care professionals use standardized printed plates under controlled lighting for maximum accuracy. Our test is best used as a preliminary screening tool to determine if you should seek professional evaluation.
Can colorblindness be cured?
Currently, there is no cure for inherited colorblindness. However, most people with color vision deficiency adapt well and lead completely normal lives. Special tinted glasses and contact lenses can sometimes enhance color perception for certain individuals, though they don't restore normal color vision. Acquired colorblindness caused by medication, disease, or injury may sometimes improve if the underlying condition is treated.
How long does the colorblind test take?
Our online colorblind test takes approximately 2-3 minutes to complete. The test consists of 5 Ishihara-style plates that you'll view and identify numbers within. Take your time with each plate - there's no time limit. Make sure you're in a well-lit area and your screen brightness is set to normal before beginning.
What is the Ishihara test?
The Ishihara test is the most widely used method for detecting red-green color blindness. Created by Dr. Shinobu Ishihara in 1917, it uses colored dots arranged in circles with numbers or patterns hidden within them. People with normal color vision see certain numbers, while those with color vision deficiency see different numbers or no numbers at all. The test specifically identifies protanopia (red-blindness) and deuteranopia (green-blindness).
Is red-green colorblindness the most common type?
Yes, red-green colorblindness is by far the most common type, affecting approximately 8% of men and 0.5% of women. This includes both deuteranopia (green cone deficiency) and protanopia (red cone deficiency). Blue-yellow colorblindness (tritanopia) is much rarer, affecting less than 1% of people. Complete colorblindness (seeing only in grayscale) is extremely rare, affecting fewer than 1 in 30,000 people.
Should I take a colorblind test if I have no symptoms?
Many people with mild color vision deficiency don't realize they have it because they've adapted to seeing colors differently their entire lives. Taking a colorblind test can be helpful even without obvious symptoms, especially if you're entering a profession where color discrimination is important (such as electrical work, design, or aviation). It's also useful to know for educational accommodations and understanding how you perceive the world.