My sisters and I were all born with brown eyes. Our father's side of the family immigrated from Eastern Europe and if you've ever seen photos of children over there they all have those big dark brown eyes, exactly like we all did. Mine actually got lighter over time and are now a murky greeny brown, rather than dark like my sisters. Dad's family all have dark brown eyes.

My Mum's eyes are hazel, meaning she has one brown and one blue gene (her father had blue eyes). So the gene I inherited from my Mum would be either brown or blue.

My DP has blue eyes, so he must have two blue genes (his are light blue).

Our DD was born with bright blue eyes (not the darker blue that tends to be changeable). Her eyes have stayed the same colour since birth. So this means I must have the blue gene from my Mum (even though I have brown eyes) since otherwise DD would have hazel or brown eyes by now. Her blue is actually closest to the blue of my grandfather's (my Mum's dad) eyes, her great-grandfather (so his blue gene that came through Mum and then me), which is kinda funny since neither my Mum nor I had his eyes!

Hope that wasn't too boring!