By stimulating certain cones with extreme precision, scientists can help humans perceive a new color that defies all comparisons. From the first time I saw Blade Runner and heard Rutger Hauer’s Roy Batty describe “C-beams glittering in the dark near the Tannhäuser Gate,

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