05/28/2026
What color are your eyes? đź‘€
For most of human history, every person on Earth likely had brown eyes. Scientists believe other eye colors appeared later through genetic mutations that affected melanin levels in the iris.
Today, green eyes are considered the rarest natural eye color and are found in only about 2% of the global population. Brown eyes remain the most common worldwide because they contain higher amounts of melanin, which also helps protect against strong sunlight.
Eye color is influenced by multiple genes, which is why shades can vary so much between people, even within the same family.