I think you made the decision that much harder on yourself with all our opinons
Well.. my opinion would need more information. Like:
1. What does your coop look like now (pics?) - Kind of like a car. I like white convertibles, but regular white cars look old ladish to me... Make sense?
2. What is the surrounding environment like?
- coop close to your house?
- live on a farm, suburb, city?
- do you care if it matches or blends in with environment?
3. What kind of 'feel' to you want to get when you look at your coop?
Sorry, maybe I'm weird and I tend to over analyze, but a lot of factors come into play when I think about paint colors
Other than that... BLUES!!!