Ellie started with dark blue, almost violet eyes, and they've slowly lightened to a beautiful bright blue.
Both DH and I have blue eyes (hers looks more like his), so it's likely they'll stay that way.
My sister, who is my parents' biological child, has beautiful gray-blue eyes, while my dad has green and my mom has hazel. I think you have to go back two generations to find someone else with blue eyes.
I remember reading somewhere once that unlike many genes that only have dominant/recessive pairings (remember the Punnett's square from high school biology?), eye color is unusual because there are three different alleles--green, brown, and blue--and while brown is generally dominant over blue, it's not as dominant over green, and, in rare instances, may even be recessive to blue, leading to the rare event of two blue eyed parents producing a brown-eyed child. (Man, I would not want to have to try to explain that one to DH without a *lot* of research to back me up, though! )
I have to third the PPs who said that genetics are fascinating!
Edited by Laurski - 3/19/11 at 1:07pm