Baby eye color calculator
Pick each parent's eye color — and a grandparent's, if you know it — and we'll estimate the odds your baby ends up with brown, green or blue eyes.
Mom's eye color
Dad's eye color
How the eye color prediction works
Eye color comes down to how much melanin sits in the front of the iris. More melanin means brown; a little means green or hazel; almost none looks blue or grey. Two genes do most of the deciding, and the "brown" version tends to win when it's present — which is why brown is the most common eye color in the world.
Because the blue gene is recessive, it can hide for a generation. That's why the calculator asks about grandparents: if a brown-eyed parent had a blue-eyed mother or father, that parent almost certainly carries the blue gene and can pass it on. Ticking that box shifts the odds toward lighter eyes.
When does baby eye color change?
Newborns often start with dark blue or slate-grey eyes. Over the first six to nine months the iris builds melanin and the real color emerges. Brown usually locks in earliest; green and hazel are the slowest and can keep shifting until your baby's first birthday, sometimes a little beyond.
Eye color progression, month by month
If you want to track it, take a photo in the same soft, indirect light every month. You'll often see blue-grey at birth, a hint of the final shade around three to four months, and a settled color by nine to twelve months. Babies heading for brown eyes tend to show flecks of gold or brown near the pupil first.
Common questions
How accurate is a baby eye color calculator?+
It gives a genetics-based estimate, not a certainty. Eye color is controlled by several genes, but two of them (mainly OCA2 and HERC2) do most of the work, so a parent-based prediction lands close most of the time. Adding a grandparent's eye color makes it sharper because it reveals hidden recessive genes.
When does a baby's eye color change?+
Most babies are born with dark blue or grey eyes because the iris hasn't finished making melanin. Real color usually appears between 6 and 9 months and can keep deepening until about 12 months — occasionally up to age three.
Can two blue-eyed parents have a brown-eyed baby?+
It's rare but possible, because more than one gene is involved. The calculator shows blue as by far the most likely outcome for two blue-eyed parents, with a small chance of green.
What is eye color progression?+
It's the gradual shift from a newborn's blue-grey eyes to their final color as melanin builds up. Brown eyes usually settle first; green and hazel take the longest and change the most month to month.