According to reports published in New Scientist, a team of researchers has enabled five people to see an intensely saturated blue green hue unlike anything they had experienced before. The colour, which the scientists have named “olo”, is not found anywhere in the natural visible spectrum as we normally perceive it.How humans usually see colourHuman colour vision is shaped by three types of The catch is that these cone types have overlapping sensitivities. In everyday vision, light at the blue green end of ...