Mine are brown, but Brian's change from Blue to Green depending on weather it's cold or warm outside. I usually only notice it during the changing of seasons. Infact, I've only noticed it a couple of times, but I have seen it. And no, they're not contacts, he doesn't wear those any more nor does he have any around the house!

Of course, Destiny and Dakota fit both of us! There they used to have one green eye and one blue eye, the older they get, the blue stays blue, but the green eye has become more brownish. So, they are multi colored eyes with one being the color of Brian's eyes and one being the color of mine! It's pretty cool!