Of course, not all blue eyes are the same. The gradations in blue are due to variations in melanin levels as well. Melanin also helps determine the color of your hair and your skin.

If you're a blue-eyed makeup wearer, browns and golds are your most obvious choice, as warmer tones make cool ones appear brighter. ... ($25) is the perfect shade of blue-gray.

Gray eyes: Gray eyes are pretty rare themselves, with only around 3% of the world's population sporting them. Gray-eyed people have similar levels of melanin as blue-eyed people.

For grey eyes, it’s a similar phenomenon to blue, except the stroma contains more collagen. This makes the layer less translucent and dampens the blue. The Tyndall effect still occurs in green eyes.

Most babies are born with blue eyes, but that eye color may not last long. During the first year of your baby’s life, you’ll see their eyes reveal a unique shade. Here’s what you need to ...