Mine is raw wood brown. Our coop is made of home-milled lumber so it is very hard to paint and it still look nice. The raw lumber look is pretty and actually pretty easy to keep clean.
Go for the purple!!!
The interior of the current coop is '50's aqua---it was oops porch paint from the Home Depot for $5 a gallon, and the ceiling is white. I like it, though it does show the birdies' artistic ventures with poo-flinging noticably.
I don't know what we will do with the new one.
the first coop is yellow inside. the addition coop hasnt been painted.... mmmm guess i should get that done.
oh darn it, just remembered as i am typing, we insulated the first coop,,,so its got plywood over my painted yellow!!
guess ill be painting both! i am thinking white tho....it will be fresh and airy.