In kindergarten, we learn red, orange, yellow, green, blue, indigo, and violet.
But the truth is that the rainbow, or true white light, contains EVERY COLOR that the human eye can detect.
Sure, ROYGBIV is in the rainbow. So are amber, aqua, beige, blond, canary, coral, ebony, emerald, flax, fuchsia, gold, heliotrope, ivory, jade, khaki, lemon, maroon, navy, olive, pink, rose, salmon, tan, umber, verdigris, wisteria, saffron, and millions of others ... some without names.