If you or someone you know suffers from colorblindness, you may be interested in
eyePilot Color Guide Software, a Mac OS X and Windows-compatible application that helps users better understand and work with color-dependent digital content. A 30-day free trial is available. It costs $34.
EyePilot works as an interactive floating window that can be layered over a Web browser, documents, graphics and computer applications. It contains four tools that can help colorblind users understand and interpret what they’re looking at: Gray, Flash, Name and Hue.
Gray isolates all instances of a single color by keeping everything that is that color unchanged, and graying everything else out. EyePilot’s developers explain that this is helpful to understand weather maps, financial data, subway maps and more.
Flash will flash as black or white all instances of a particular color — helpful for viewing charts. Name will flash as black or white all instances of colors you select by name on a list. Good for understanding traffic maps, catalog illustrations and more. Hue rearranges all the colors in the capture frame, to help you find a setting where color is more easily differentiated. Useful for viewing colored text, complex maps, scatter charts and engineering drawings, for example.
EyePilot requires Mac OS X v10.2 or later. It also runs on various versions of Windows.