I just turned my house from poopy brown to BLUE last year. I paid a local company to do it and it wasn't cheap (although much cheaper than full siding replacement, which was my initial intention). It took them two days and I don't regret it, tho I may not be the best person to ask cuz I'm very lazy DIYing just about anything around my house | hell yea blue brother
I went with a blue-green for mine, plus white trim and grey soffit/fascia | I've never touched the interior paint though and really don't have much motivation to, so my office is still rocking the baby blue from what was clearly a baby's room |