Although the odds of having blue eyes are markedly lower than having brown eyes, blue isn’t the rarest of all eye colors. In fact, it’s actually the second most common eye color out there, according to an article in World Atlas, which is a little surprising given that 8 to 10 percent isn’t exactly a huge swath of the population.
But it turns out that having hazel eyes is less common than having either blue or brown eyes, as only 5 percent of people have that color in their irises. Additionally, approximately 5 percent of the world’s population have amber-colored eyes, although sometimes this is confused with the hazel pattern. Less common than either of those shades is green, as only 2 percent of the world’s population is blessed with that phenotype.
The most rare eye colors in the world are gray eyes, red/violet eyes (which are often in people with severe forms of albinism), and eyes with heterochromia (different colored eyes), all clocking in at less than one percent of all people worldwide. They’re the real unicorns here!