Green eyes are widely considered the rarest common eye color worldwide. They occur in about 2% of the global population, primarily due to a specific combination of genetic factors involving low melanin levels in the iris.
Rarest Colors
Gray eyes follow closely, appearing in less than 1% of people and often resulting from light scattering in the iris stroma. Red or violet eyes are exceptionally rare, seen in under 0.01% of individuals, typically linked to albinism where blood vessels show through due to absent melanin.
Common Comparisons
Brown eyes dominate at over 55% globally, while blue and hazel are more frequent than green but still less common than brown.
Eye Color| Approx. Global Prevalence
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Brown| 55%+ 2
Blue| 8-10% 3
Green| 2% 1
Gray| <1% 1
Red/Violet| <0.01% 5
