Triple Entendre help

[weddinggraphix]

Can anybody help? I tried rainbow, but i think there's more to this puzzle.

[Adventure]

Maybe it's just rainbow because those are the colors of the rainbow

http://en.wikipedia.org/wiki/Roy_G._Biv

[weddinggraphix]

For those of you playing the iPhone riddle game Triple Entendre, I'm stuck on puzzle #11. I'll try to describe the puzzle, because i don't know how to post it the picture from the iphone. There are six words arranged in a random order on the screen and each word is in a different color. They are as follows:

"Romeo" (written in Red)
"Yankee" (written in Yellow)
"Victor" (written in Violet)
"Golf" (written in Green)
"Oscar" (written in Orange)
"India" (written in Indigo?)

This has an answer and i'm not sure what it is. Any help would be appreciated since it is driving me crazy.