Blue Eye Color
Percentage Of People Who Have It: Around 8%
Blue eye color is not normal in the slightest and anyone who has this color has a mutation in their genetics. This might sound weird or scary, but it’s not that big of a deal. It began thousands of years ago when people began moving out of civilizations in the Middle East and into colder European sectors. Melanin began to change for these people as they no longer operated as often outdoors due to the far colder temperature. Eventually, the white caucasian skin color came from this.
Yet melanin did not stop with skin color, it also affected hair color and eventually the eyes. When it comes to blue eyes specifically, a genetic mutation in the HERC2 gene is to blame. This mutation causes reduced melanin production in the iris, which can offer a beautiful blue color. However, the lack of melanin also means those with blue eyes will be more sensitive to light. For example, they might need sunglasses in even small sunlight or have trouble driving at night due to lights on the road.