Coolest eye colors8/30/2023 While the concepts behind eye color charts are generally true, the genetics of how eye colors are inherited turned out to be much more complicated than once believed.Ĭurrently, it's impossible to determine a child's eye color based on the eye colors of their parents (and grandparents) with 100% certainty. So when a brown-eyed person marries someone with blue eyes, offspring are more likely to inherit the more dominant brown eyes - but it's far from a guarantee. This is because more people now select mates outside their cultural and ethnic groups. For example, the percentage of dark brown eyes found in Asian and African populations is much higher than in European populations, where blue eyes are relatively common.Īnd one day, even blue may be a rare eye color. Their eyes can each be a different color, or there can be splashes of color on parts of one or both eyes.Įye color percentages vary based on different populations in different parts of the world. Some people are even born with two different eye colors, a condition known as heterochromia. This is why standard eye color charts can be inaccurate. Instead, a bunch of tiny expressions, in many different genes, come together to determine that final eye color. Different levels of the pigment create the appearance of blue, brown, and everything in between. Eye color depends on how much melanin is in the iris and how it's distributed.īlue eyes contain much less melanin than brown eyes. The color of your eyes relies on the pigment melanin, the same pigment that's in your skin and hair. SEE RELATED: What's the rarest eye color? The science behind eye color Human genetics are just too complicated - and too unpredictable. Unfortunately, there isn't really a convenient, scientifically accurate way to organize eye color odds into chart form. For example, the chart notes that two blue-eyed parents can't have a brown-eyed baby, but we now know that isn't true. Like it shows, when two parents have the same eye color, their child generally has the highest chance of having that same eye color.īut the details aren't quite as accurate. There's a good chance it even included the same (or similar) percentages. You've probably seen an eye color chart like the one above. A popular - but outdated - example of an eye color chart.
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