Approximately, 8 - 12% of European descent males and roughly 1/2 of a percent of females suffer from color blindness. Individuals who are color blind typically can not distinguish between the colors red and green. To make your web pages accessible to color blind people you only have to do a few things. First, think about what color palette you decide to use for your course layout and design. If you use color as a way to communicate difference, stay away from using the colors red and green. Ensure that text and graphics are understandable when viewed without color. For example, do not use a red symbol to signify 'stop' and the same symbol but in green to denote 'go.' Ensure that all information conveyed with color is also available without color, for example from context or markup.
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