Riddle

I can be red, blue, purple, and green. No one can reach me, not even the queen. What am I?

Choose an answer

A.A star
B.A cloud
C.A flower
D.Rainbow
Hint: It's a word with 7 letters, starting with "R".

Answer

Rainbow

Why this is the answer

Rainbows display bands of color but are an optical phenomenon with no physical location anyone, not even royalty, can actually reach.

This riddle is filed under "What Am I?" Riddles and rated Medium.