Never say I don't follow the occasional trend...
Your rainbow is slightly shaded blue.
What is says about you: You are a tranquil person. You appreciate friends who get along with one another. You share hobbies with friends and like trying to fit into their routines.
Find the colors of your rainbow at spacefem.com.
When I took my first psych course, we all did a "personality test" and got the results. As we all (about 200 in the first class) were awed by how close the personality described was to our own personalities, we started reading other people's descriptions. They were all identical. If you phrase it generically enough, it'll always be right. The human brain will interpret it to make it right. That's how most of these things operate.
That said, I kinda like my rainbow. It's pretty. A little TOO blue for my tastes but calming and nice nonetheless.