The most common eye colors in cats

There are generally 7 colors for cats’ eyes, of which 4 are common colors and 3 are more special colors. The reason why cats' eyes can have these seven colors is related to "melanin". Different colors appear depending on the concentration of melanin.

The most common colors of cats are green, plum, copper, and khaki. Green pupils are mainly related to relatively light melanin. Cats in cold areas often have eyes of this color. After all, insufficient sunlight results in insufficient concentration of melanin. Tsubaki-colored pupils look darker than green, as if they are a fusion of green and brown. Copper pupils are a color that occurs when melanin reaches a very high concentration. It is also a very common eye color among cats. Earthy eye color is more common than copper color, and is also formed by the densest melanin, giving people a very close feeling.