In this article, we will countdown the top 10 most rare and unusual eye colours in the world. Factors considered include global frequency, geographic distribution, and genetic uniqueness. For each eye colour, we explore its distinctive genetic mechanisms, geographic spread, and how it manifests visually. The Genetics Behind Eye Colour

Of the less common eye colors, pink and red eyes are considered to be the most unique in the world, giving new meaning to the word “rare.” Only one in every 20,000 people have a form of albinism, according to the National Institutes of Health, and even fewer have red-tinted eyes.

Our eyes, the windows to our souls, are more than just organs that allow us to perceive the world around us. They are a reflection of our heritage, a canvas painted with the intricate hues of melanin, and a source of endless fascination. While the most common eye colors like brown and blue dominate the global population, a spectrum of rarer shades exists, each captivating in its own unique way ...

Black eyes are actually very dark brown (with the exception of aniridia). But, the most rare eye color varies depending on a population’s genetic heritage. Overall, the rarest eye color is a toss-up between red and purple (since true black does not involve an iris). Green, amber, and gray are uncommon in certain populations.