how to determine color of hair

Both my husband and I have dark brown hair (very dark brown, almost black) DS#1 has the same color as us, and DS#2 has blonde BLONDE hair....very very blonde....

ANyone know how to figure out what the possibilities for this baby are? I know you can do this with eye color, just curious about hair.

Thanks!

Re: how to determine color of hair

I wish I knew how...I'm very curious myself. DH has dark brown hair and I've got brown hair. My brother was platinum blond growing up and now he has dark blond almost brown hair. I was born with jet black hair and then was blond growing up. And my dad's hair is (was ) dark brown, but for years whenever he tried to grow a bear it came in carrot red . I'm so curious to see what this kid's hair is going to look like!!