Color Vision Deficiency Test

May 02, 2021
Color Vision Deficiency Test

Designing websites for the color blind audience in mind is indispensable. Depending on the type, most people with color blindness can see color. However, someone with a color vision deficiency may lack all or some cones.

Color blindness or color vision deficiency (CVD) affects around 1 in 12 men and 1 in 200 women worldwide. This means that for every 100 users that visit your website or app, up to 8 people could actually experience the content much differently than you’d expect.

Is Your Website is Colorblind Friendly?

Instantly test your web page with different types of color vision deficiency.

1. Spectrum

This extension helps you to test web pages for people with different types of CVD. It’s particularly useful for websites with data visualizations, because some colors may not be distinguishable from other colors in the charts. Flash enabled websites are also supported!

2. Colorblind Web Page Filter

The Colorblind Web Page Filter is a great web application to get an impression how a web page is viewed by people affected by any kind of color blindness. After indicating the URL and choosing the appropriate color filter the view is directly shown inside the browser window.

This Will fetch any public URL and display the site as seen by people with different types of color blindness.

3. Vision

Vision is software allowing people with different kinds of color blindness (colour vision deficiency) to see more colors.

Vision provides solutions to some of the everyday problems experienced by colour blind people. People with various types of colour deficiency could benefit from the use of Vision software including those affected by Tritanopia (blue colour vision deficiency), Deuteranopia (green), Protanopia (red).

Vision Chrome Extension

Screening for color deficiencies

The most widely used screening test for color deficiencies is the Ishihara Color Vision Test. The test contains circular patterns comprised of many dots of various colors, brightness, and sizes. Within the circle is a number. A color deficient person will either be unable to see the number or will see a different number than the one seen by a person with normal color vision.

Color Vision Testing

3. Coblis — Color Blindness Simulator

If you are not suffering from a color vision deficiency it is very hard to imagine how it looks like to be colorblind. The Color Blindness Simulator can close this gap for you. Just play around with it and get a feeling of how it is to have a color vision handicap.

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