Casanova explains that a colorist will first identify your natural hair color, skin tone, and eye color. Then, based on those results, they'll use the color wheel to achieve your desired color result.

If you have the rarest hair color and eye color combination, you're one in a million—or more! Here's the pair that makes you a rarity. Skip to main content. A Trusted Friend in a Complicated World.

Read moreThis is the rarest hair and eye color combination. Brown eyes, hazel eyes, green eyes, blue eyes — these are the standard shades for the windows to our soul.

A standard eye chart, used to match eye color for artificial eyes, determined the color of each subject's eyes. ... He also reminds that eye, skin and hair color are all things that can be altered.

Eumelanin is responsible for dark colors in skin, eyes and hair, "and is more common in those with black or brown hair and eyes," says Shilpi Khetarpal, MD, a dermatologist at the Cleveland Clinic.

Experts reveal the best hair colors for brown eyes to make them pop. Options include warm- and cool-toned browns, blonds, and more.

Melanin is the protein that creates skin, eye and hair color. More melanin means darker eyes, hair or skin. The color of the melanin in the eyes is determined by three other genes, EYCL1, 2 and 3.

Use the makeup tips specific to your eye color and hair color, as well as your face shape to achieve the best look possible. Originally published March 2011. Updated November 2016.

Red is the rarest hair color, but to understand why that’s the case, you need a basic grasp of the science. There’s a lot more to it than the simple traits we learned about in high school biology.