[kaiwetzel]

A small free tool for OS X I found useful is Sim Daltonism[1]

Sim Daltonism is a color blindness simulator for Mac OS X. It filters in real-time the area around the mouse pointer and displays the result ” as seen by a color blind person ” in a floating palette.

If anybody has information about how people with limited color vision perceive the aesthetical side of colors (e.g. how well colors go together in a web site palette) I would love to read about it.

[1] http://michelf.com/projects/sim-daltonism/

[mvzink]

This is very cool, thanks for posting this.

I wanted to find a similar utility for Windows and came across Color Oracle:

http://colororacle.org/

Also, thanks to this, I've noticed that the common purple color for visited links is distinguishable from the blue it usually accompanies (e.g. Google) for people with deuteranopia.