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UC Berkeley Researchers Reveal 'Olo,' a Color Beyond Human Vision

  • UC Berkeley and other researchers revealed a new color called olo on April 18, 2025, seen by five test subjects using the Oz Vision System.
  • They developed Oz to selectively stimulate individual M cone cells in the retina, enabling perception beyond standard human color vision limitations.
  • Participants described olo as an intensely saturated blue-green hue unlike any natural color, verified through color-matching tests and multiple validation steps.
  • Ren Ng said the technique could allow people with color blindness to perceive new hues, while experts called the research an impressive technical achievement.
  • The researchers suggest Oz might help study vision more precisely and eventually enable color-blind individuals to experience a fuller color spectrum.
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So far they have only seen five people around the world: the color Olo. Using a special laser system, researchers have now discovered the blue-green hue. It should surpass all other colors in intensity and luminosity. But is Olo really new?

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Nature broke the news in United Kingdom on Friday, April 18, 2025.
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