What Colour?

I thought I'd paint the laundry/side door in a fun colour - My immediate thought was bright yellow but the more I've thought about it the more indecisive I've became.  Now I'm thinking I might do the front door as well.  It used to be a gorgeous deep state blue but it being a west facing door it got so hot in summer that the paint would bubble.  A glossy black would be great but I think I need to steer clear of the dark colours for that reason.
I need some suggestions..... for the front door and the side door.....