While violet hits your eye with a specific wavelength, purple only exists in your perception — a clever construct built from conflicting input.

When you think about the Sun, you might think about a bright yellow circle, reminiscent from your childhood drawings and ...

Scientists have discovered that purple, a color not found on the light spectrum, is a brain-created illusion when red and blue light combine.

This image shows an example of a colour wheel close colour wheelA circle showing ... colours. Red and yellow make orange. Red and blue make purple. Yellow and blue make green.