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  1. en.wikipedia.org › wiki › Eye_colorEye color - Wikipedia

    In humans, brown is by far the most common eye color, with approximately 79% of people in the world having it. Brown eyes result from a relatively high concentration of melanin in the stroma of the iris, which causes light of both shorter and longer wavelengths to be absorbed.

  2. The scale consists of 20 colors (from light blue to dark brown-black) that correspond to the different eye colors observed in nature due to the amount of melanin in the iris (in this case, the lower the number, the lighter the eye color): 1-2: blue iris (1a, 1b, 1c, 2a : light blue iris - 2b: darker blue iris) 3: blue-gray iris

  3. 25 apr 2024 · Eye colour has been recognized as a heritable trait since the early 1900s, when researchers began to study patterns in eye colour in children and their parents and found that brown eye colour is consistently dominant over blue eye colour.

  4. Overview. The six main eye colors are amber, blue, brown, green and hazel, and many different shades and color patterns are possible. What gives my eyes their color? Your eye color refers to the color of each eye’s iris, a double-layered ring of muscle tissue around your pupil that controls how much light enters your eyes.

  5. 7 apr 2017 · Published Apr. 07, 2017. True fact: about 10,000 years ago, every human on Earth had brown eyes. Now, half of all people in the U.S. have brown eyes. Worldwide, that number could be even greater. The brown color comes from melanin, a pigment in our eyes that also gives a brown color to hair, skin and other cells.