This website talks about how genetics determines your eye color and helps the last website out with more explanation.
This website talks about if eye color is determined by genetics. It says that eye color is just different amounts pigmentations in the iris.
This article talks about what each of the eye colors are and which is the most common.
This article has lots of good information on studies that they have done on eye color and the rarity of the color and it is all good information.