Subscribe to our newsletter. There has rightly been much attention focused on usability in Web design, on site accessibility for the disabled. After all, we want all users to have the best possible experience when visiting our sites. Recently there has been a drive to make Web designers aware of the problems encountered by color blind Web users. For color blind users, the Web experience can be more than merely frustrating.
Problems can be as severe as invisible text and navigation , rendering sites completely unusable.
Given the large percentage of the population that suffers from color blindness and the severity of the problems they encounter on the Web, I thought we should take a look at how to design sites that will be usable to our color blind site visitors. Although there are various types of color blindness, nearly all color blind people have difficulty distinguishing between red and green. Many color blind people have problems with shades of colors. Most color blind people can detect black and white accurately. Most color blind people can see shades of blue and yellow.