Olo

Olo is a color. A "team of scientists... [at the University of California, Berkeley] claim to have experienced a colour no one has seen before." "Researchers used lasers to stimulate individual cone cells in the retina — leading to the perception of a completely new colour." The intense blue-green color was seen by five people when "researchers used lasers and tracking technology to selectively activate certain cells in their retinas." The research was reported in April of 2025. To be sure that olo is really a new color, the scientists did tests. One test was a color-matching test. They had the five participants try to match olo to a blue-green color from a near-monochromatic laser. This kind of laser makes the most saturated colors that can be seen naturally. "Participants could only match olo to this blue-green hue by reducing its saturation, confirming that olo lies outside the boundaries of normal human color vision." The name "olo" comes from the binary 010, which represents that only the medium cones are fired but not short or long

Closest visible color to olo.

However, one scientist says it is just "a more saturated green."

References

This article "Olo" is from Simple English Wikipedia. The list of its authors can be seen in its historical and/or the page Edithistory:Olo.

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