Someone figure the math out for me also on this.... We have six children, husband and I both have green eyes, 5 children have blue and one brown. Why did we not get one green eyed? Are they all mine!?? LOL
We have four brown and two green in addition to the three with blue eyes. We’re still waiting to see if the youngest blue-eyed one turns out to have green eyes. Our two greens were blue-eyed until around 3 years of age.
If the husband has one gene for blue and one gene for brown, and the wife has one gene for blue and one gene for some other color, statistically there is a one in four chance that a child will have blue eyes. Three out of nine is close enough since statistics and reality are not identical.
With two green eyed parents, they would each have a blue eyed gene, however, the green is much lighter than brown, and would contribute much less melanin, so perhaps some shade of blue might include a green genetic input. My husband had very clear light blue eyes. Our grandson has fairly dark blue eyes. I feel certain my husband was a pure recessive for blue, but I’ll bet our grandson has a little bit of melanin in his eye color. Don’t be suspecting infidelity based on your two cases.