This article might help you in some way.
https://www.entrepreneur.com/articl...utm_medium=Sharebar&utm_campaign=Sumome_share
Check this http://imgur.com/a/K0NjUCan't see the photo. It is not loading.![]()
According to this article, I was right! Purple is considered "imaginative" and "creative". Which is what OP's app is.
Thanks for the share. I'm bookmarking this.