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Like any responsible developer, I'd like to make sure that the sites I produce are accessible to the widest possible audience, and that includes the significant fraction of the population with some form of colour blindness.
There are many websites which offer to filter a URL you feed it, either by rendering a picture or by filtering all content. However, both approaches seem to fail when rendering even moderately complex layouts, so I'd be interested in finding a client-side approach.
The ideal solution would be a system filter over the whole screen that can be used to test any program. The next best thing would be a browser plugin.
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Colour vision simulators Even more interesting are colour blindness simulators* such as ColorOracle, Colour Contrast Analyser. Many can be found via Google search/Chrome extensions or within Adobe Photoshop but note no simulators are 100% accurate for each type or severity.
Color Blind Pal for iOS and Android helps people who are color blind see the colors around them. It also lets people with normal vision see what it's like to be color blind. Want to know what color something is?
Monochromacy is a disease state in human vision but is normal in pinnipeds (such as Neophoca cinerea shown here), cetaceans, owl monkeys and some other animals. Many mammals, such as cetaceans, the owl monkey and the Australian sea lion (pictured at right) are monochromats.
Color Oracle is a free color blindness simulator for Windows, Mac and Linux. It takes the guesswork out of designing for color blindness by showing you in real time what people with common color vision impairments will see.
I came across Color Oracle and thought it might help. Here is the short description:
Color Oracle is a colorblindness simulator for Windows, Mac and Linux. It takes the guesswork out of designing for color blindness by showing you in real time what people with common color vision impairments will see.
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