My rainbow poem I linked in another comment concludes with these lines:

"Look at the picture
What do you see?
ROYGBIV
Full human spirit energetic chakra spectrum
Red — root
Orange — sacral
Yellow — solar plexus
Green — heart
Blue — throat
Indigo — third eye
Violet wears the crown

Perhaps that’s why every human being loves rainbows
Each arc represents all of us

Oneness"