Sim Daltonism: Mac OS X colorblindness simulator

Full description and download available at: Sim Daltonism (click opens new window)

Description (from the website)

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.

Since there are many types of color blindness, Sim Daltonism allow you to choose the one you want to see.

Types of Colorblindness Filters

• Monochromacy (complete)
• Monochromacy (partial) - Complete or partial inability to distinguish colors. This color blindness is pretty rare.
• Protanopia (complete red-green)
• Protanomaly (partial red-green) - Complete or partial inability to see using long-wavelength sensitive retinal cones making hard to distinguish between colors in the green-yellow-red section of the spectrum.
• Deuteranopia (complete red-green)
• Deuteranomaly (partial red-green) - Complete or partial inability to see using middle-wavelength sensitive retinal cones making hard to distinguish between colors in the green-yellow-red section of the spectrum. This is the most common form of color blindness.
• Tritanopia (complete blue-yellow)
• Tritanomaly (partial blue-yellow) - Complete or partial inability to see using short-wavelength sensitive retinal cones making hard to distinguish between colors in the blue-yellow section of the spectrum.

Requirements

• Mac OS X 10.2.8 or later.
• A fairly standard color screen.