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Is there a way to test if a GUI is usable for color blind person?
I know that it has many degrees and I guess that's why simply doing a screenshot in black & white is not the best way to test the usability of a GUI for a color blind person. What is the best way or best tool to do it?
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One great resource is the Color Blindness Simulator. This online tool lets you test how your website or app looks to people who are color blind. It has a range of simulation options, so you can test how your designs look for different types of color blindness.
Two of the main tests used to diagnose colour vision deficiency are: the Ishihara test, where you're asked to identify numbers contained within images made up of different coloured dots. colour arrangement, where you're asked to arrange coloured objects in order of their different shades.
To check whether a webpage is usable by people with color blindness: Open the accessibility-testing demo webpage in a new window or tab. Right-click anywhere in the webpage and then select Inspect.
This is a very simple way to test and does not require you to find every color-blind type individual out there (as there are different levels of color blindness). Show activity on this post. Technically, there is really no way in which you could do this other than to use a black and white interface.
To check that a webpage is usable by people with color blindness, in the Rendering tool, use the Emulate vision deficiencies dropdown list. On the accessibility-testing demo webpage, the different donation states use color as the only means of differentiation: Green means a high amount of donations have been received.
The Windows User Experience Guidelines also cover color with respect to color blindness. Show activity on this post. I was told by one of my users that his sight disability requires him to use the High Contrast Black setting.
This means that a person suffering from color blindness has trouble seeing red, green, blue, or a combination. A person's ability to see color is rarely lost (it is called monochromacy). Many people believe that only black and white colors are seen to a person suffering from color blindness.
Search for color blindness simulation tools on the net. You will find for example
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you can change the color of your screenshots using this website: http://www.vischeck.com/daltonize/
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