See what any computer image looks like to a color blind person

Color Oracle is an interesting free program from the Swiss Institute of Cartography and Nathaniel Vaughn Kelso of The Washington Post.  At the click of a mouse, it changes the image on your display to mimic what different kind of color blind people see when they look at that screen.  The program lets you chose between Deuteranopia (the most common kind of Red/Green color blindness), Protanopia (another, rarer kind of Red/Green color blindness) and Tritanopia (the much rarer Blue/Yellow deficiency).

The program is for Macs only and you can read more and download a free copy at:

http://colororacle.cartography.ch/index.html