Is there really a RoyG Biv?

Answer 1

Yes ROYGBIV was taught at my school. Quite a colorful, delightful character, too.

Each letter stands for the colours of the rainbow/spectrum in order - namely

red orange yellow green blue indigo and finally violet.

Answer 2

Yes, ROYGBIV is an acronym that stands for the colors of the visible spectrum in order: red, orange, yellow, green, blue, indigo, violet. It is commonly used to remember the colors of the rainbow.