Meet Olo, the Newly Discovered Color Only Five People Have Ever Seen.

Imagine a color so vivid, so saturated, it defies the limits of your imagination—and your screen. Meet olo, the latest addition to the human color vocabulary, courtesy of a groundbreaking study from the University of California, Berkeley.

In a recent experiment, researchers used a device called “Oz” to stimulate only the M cones (the retinal cells sensitive to green light) in participants’ eyes using precise laser pulses. This targeted stimulation bypassed the usual overlap with other cone types, producing a visual experience described as a “blue-green of unprecedented saturation.”

Five individuals, including members of the research team, reported seeing this novel hue. While the closest approximation resembles a bright teal, the true essence of olo remains elusive—it’s a color that can’t be accurately displayed on any digital screen or reproduced with existing pigments.

The implications of this discovery extend beyond mere novelty. By understanding how the brain perceives such unique colors, scientists hope to gain insights into visual processing and potential applications in treating color vision deficiencies.

For now, olo remains an exclusive experience, confined to the controlled environment of a research lab. But as technology advances, who knows? One day, we might all get a glimpse of this extraordinary hue.