Rainbows have seven colours in total. The colours of the rainbow always appear in the same order: Red, Orange, Yellow, Green, ...

The fascinating chemical is useful in the dairy industry, but influencers with blue tongues have more dubious ideas.

An object’s color appears differently under different lighting and against different backgrounds − for different viewers. But that doesn’t mean colors are subjective.

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