Olo is described as a "new color" that scientists argue they’ve enabled people to see – one that doesn’t resemble anything in our everyday visual experience. It’s described as an intensely saturated greenish-blue,

"Olo" is said to be a saturated blue-green or teal colour - but some say the perception of the colour is "open to argument".

Scientists at the University of California have claimed to have discovered a new colour that no human has ever seen before. Named "Olo", the colour was revealed during an experiment where laser pulses were fired into volunteers' eyes.