Baby Eye Color Calculator
Explore approximate eye-color probabilities for a baby from the parents' eye colors, with an optional grandparent refinement.
Choose each parent's eye color to see a simple probability breakdown for brown, green-hazel and blue eyes. Add grandparents if you know their eye colors, and the estimate shifts gently toward hidden recessive possibilities.
Your result
Eye color is polygenic and can change in the first years of life. This is not a genetic test.
How it works
Eye color is polygenic, which means many genes work together rather than one simple switch. This calculator uses a widely published simplified table that groups outcomes into three broad categories: brown, green-hazel and blue. It looks up the parents' combination, then shows the approximate share for each category. The percentages always add up to 100%.
The source table covers brown, green and blue. Hazel is grouped with green-hazel because it usually behaves closer to the green end of the spectrum in this kind of model. Gray is grouped with blue, and amber is grouped with green-hazel. The result screen always tells you which grouping was used, so the estimate is not pretending to be more precise than it is.
Grandparent eye colors are optional. If a grandparent has blue or gray eyes, the calculator nudges the estimate slightly toward blue; a green, hazel or amber grandparent nudges it toward green-hazel. The idea is that a parent may carry a hidden recessive variant even when their own eyes are brown. This adjustment is a transparent heuristic, not a published genetic test.
Babies are often born with blue or gray-looking eyes, and the final color can take months or years to settle. The result is a statistical tendency, not a guarantee. It cannot tell you about paternity, ancestry, health or identity, and it is not a substitute for genetic counselling.
Frequently asked questions
Can two brown-eyed parents have a blue-eyed baby?
Yes. Brown-eyed parents can carry hidden variants for lighter eyes, so a blue-eyed child is possible. The calculator shows a small blue probability for brown × brown, not zero.
Why are gray and amber grouped with other colors?
The published table this tool uses has three broad categories. Gray is closest to blue in that model, and amber is closest to green-hazel. Grouping keeps the maths honest instead of inventing separate probabilities that the source does not provide.
Do grandparents really change the result?
They can shift it slightly. A grandparent with blue or gray eyes suggests that a parent may carry a hidden light-eye variant. The calculator applies a small, clearly labelled adjustment and explains what it did.
When does a baby's eye color settle?
Many babies are born with blue or gray-looking eyes, and pigment can continue to develop for several months. Most change happens in the first year, but small changes can occur later. The color you see at birth is not always the final color.
Is this a genetic test?
No. It is an educational probability estimate based on visible eye colors. Real eye color depends on many genes and can differ from any simple prediction.
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Fictional entertainment, not a genetic or medical prediction.
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Good to know
This is an educational probability estimate, not a genetic test or a prediction for your child. Eye color is polygenic and can change in the first years of life. Speak with a doctor or genetic counsellor if you have medical questions.
Your privacy
The eye colors you choose are processed in your browser only. We never send or store them.