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 ...