User Interface versus Color Vision Deficiency
Approximately 1 in 170 women and 1 in 12 men have a decreased ability to see color. Color blindness makes it difficult or impossible for a person to engage in certain occupations; this however had no impact on the success of: Bill Clinton, Keanu Reeves, Mark Zuckerberg, Prins William and many others having similar Color Vision Deficiencies.
The effectiveness of a web-page or application does not always consider that over 200 million people across the globe have a decreased ability to see color differences. The most common form is Deuteranopia (green-blindness). Yet, many cartographers, designers and application developers don't factor this into their work. As an example, people with Deuteranopia detect traffic jams from Google or TomTom websites differently from people with normal sight.
Have a look at the image below:
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Mark Dykstra
TomTom
Lebanon NH
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