Become colorblind!

As more than 5% of all males have some sort of colorblindness (see also my previous post about colorblindness and software specification), it is important to ensure that software is usable by that large group of users.

Here comes Color Oracle, a freeware application that will let you test your software design against various sub-types of colorblindness.

Color Oracle

Via Daring Fireball, via Download Squad.