time to repaint so why not add color!

Our lake house is taupe with white trim and is in need of exterior painting. I like the taupe... but since we have to go to all the trouble to stain/paint it, I want to jazz it up a bit. I've been thinking some shade of aqua, like a house I'd seen in Coastal Living Magazine. I had already painted our wrought iron furniture out there a royal blue last year when the color bug struck me, and want it all to coordinate.

I painted a few color samples on the siding this afternoon... what do you think?

#5 is the current taupe. #3 is a gray blue that's already been ruled out, my neighbor across the street has that shade.
I would still do the trim white if I choose one of these crazy Caribbean colors.

Or... I could stain/paint the house white and add the royal blue color to the shutters that are currently black. But we do already have miles of white deck railing. So... maybe paint the house yellow? That goes great with royal blue too!
Just an FYI, I read somewhere recently that yellow houses sell faster.
What to do???