Black or blue lifeproof case?

Should i get a black or blue case i have a black iphone 5s and blue is my favorite color but i also want something that isn't bright but i know for sure i want one or the other please help me picK!

I've bought 3 cases for my iPhone 5c, brand new, on eBay for half the cost of a new one elsewhere (apple store) you can probably get both there and something you didn't know you wanted with $ to spare.