The artist-provocateur reverse-engineered the blue-green shade called ‘olo.’ Now you can buy it as an acrylic paint.

A team of scientists in California say they have discovered a new color they named olo, but you can't see the "most intense teal" with the naked eye.

Tired of texting? Send your loved ones some snail mail instead. Rachel Syme, author of "Syme's Letter Writer: A Guide to ...

You may well have heard of the ‘true cyan’ optical illusion said to induce a colour people have “never seen before” (although the actual science debunks that claim), but now, Washington and California ...