Researchers behind a recent study claim to have discovered a new color that the natural, naked eye cannot perceive — 'olo,' a ...

The color, dubbed olo, is described as an intensely saturated teal. Researchers say it might have applications in ...

A team of scientists in California say they have discovered a new color they named olo, but you can't see the "most intense teal" with the naked eye.

Central heterochromia: This form is particularly intriguing because it gives the impression that the eye is surrounded by a colored halo. The color of the iris varies around the pupil, creating a ...