The color is hard to see with the shutters being in shade. That said, they need to be in a darker value - paint them, not the house. They should be somewhere between the very dark value of the window frames and the lighter house color. Your shutters are nearly invisible in the photos. If your photo were black and white, what I'm trying to say would be more apparent.

Martha Stewart, zinc

I see the look you are going for and if you willing to paint the shutters, try Benjamin Moore West Coast http://www.benjaminmoore.com/en-us/paint-color/westcoast it's a little deeper blue with a bit of a green tone to it. Good luck!

Sounds like your were going for the Carolina Gull suggested above. That would look GREAT.

The shutters are all wrong for those arched windows anyway IMO add some stone to the house and forget the shutters . Google french country house exteriors to get inspiration

Thank you to the one(s) that suggested Benjamin Moore west coast. We love the much improved shutter colors!