Is my data safe with Color Blindness Test?

Yes, Color Blindness Test processes everything locally in your browser. Your data never leaves your device and is never sent to any server. This client-side approach ensures complete privacy for all inputs and outputs.

What formats does Color Blindness Test support?

Color Blindness Test supports all commonly used formats for its conversion type. Simply upload or paste your source data and select the desired output format from the available options.

Does Color Blindness Test work on mobile?

Yes, Color Blindness Test is fully responsive and works on smartphones, tablets, and desktops. All processing happens in your browser, so it works on any device with a modern web browser.

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Color Blindness Test

Take a comprehensive Ishihara-style color blindness screening test. Detect Protanopia, Deuteranopia, and Tritanopia with detailed results and severity scores.

Ishihara Color Vision Test

Comprehensive screening for color vision deficiency

This test uses 18 Ishihara-style plates to screen for three types of color vision deficiency:

Protanopia — reduced sensitivity to red light
Deuteranopia — reduced sensitivity to green light
Tritanopia — reduced sensitivity to blue light

Each plate shows a circle of colored dots with a hidden number. Select the number you see (or "Nothing" if you cannot see one).

Tips for Accurate Results

Ensure your screen brightness is at a comfortable level
Disable any color filters or night-mode (e.g. f.lux, Night Shift)
View in a well-lit room without direct screen glare
Respond instinctively — take no more than a few seconds per plate

Disclaimer: This is a screening tool only. Screen calibration can affect results. For a clinical diagnosis, please consult a qualified eye-care professional.

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Frequently Asked Questions About Color Blindness Test

What is Color Blindness Test?

Color Blindness Test is a free online tool on akousa.net, a platform with 453+ browser-based utilities. Take a comprehensive Ishihara-style color blindness screening test. Detect Protanopia, Deuteranopia, and Tritanopia with detailed results and severity scores. It runs entirely in your browser with no installation, signup, or data upload to any server.

How do I use Color Blindness Test?

Simply open Color Blindness Test on akousa.net, enter or upload your data, configure any options, and click the action button. Results appear instantly in your browser.

Is Color Blindness Test free?

Yes, Color Blindness Test is completely free to use with no limitations. There is no signup, no ads, and no file size restrictions. All 453+ tools on akousa.net are free and open to everyone.

Color Blindness Test

Ishihara Color Vision Test

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Frequently Asked Questions About Color Blindness Test

Ishihara Color Vision Test

About Color Blindness Test

Who Is It For?

Why Choose Color Blindness Test?

How to Use Color Blindness Test

Open Color Blindness Test

Upload or paste your data

Select the output format

Download the converted result

Key Features of Color Blindness Test

What is Color Blindness Test?

Key Features

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