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 ...

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

and they say it's a new colour and we call it red." During the team's experiment, researchers shone a laser beam into the pupil of one eye of each participant. There were five participants in the ...