A kuler color selector

Adobe labs has just unveiled kuler, a color selector application that allows designers to create harmonic color palettes. Although there are many other similar websites around (I used to like this and this), this one is built with Flash technology, has some pretty cool (visual!) color selection rules, and exports palettes in a way that certain Adobe tools can read. Check it out. Now all it needs is a way to simulate partial color blindness, like this website.