Researchers discover a new color outside the range of human color vision, but you have to laser your retinas to see it ...

Unlike more common eye colors like brown, which is the dominant color and makes up about 80% of the world's population, or blue and green, gray eyes require a confluence of complex genetic ...

Researchers behind a recent study claim to have discovered a new color that the natural, naked eye cannot perceive — 'olo,' a hyper-saturated blue-green that occurs when a single kind of cone cell is ...