Sim Daltonism - From the perspective of a color blind person, some colors are impossible to distinguish.
Less Boring New Tab - Your browser deserves a better new tab page
Coblis - If you are not suffering from a color vision deficiency it is very hard to imagine how it looks...
Mustsee - Discover the world’s most beautiful places
Colorblind Web Page Filter - Enter a URL, and this tool will render it as someone with color blindness will see it.
Exposure New Tab - Get a beautiful photo from Exposure in every new tab