Claire -- it's not paint, it's vinyl siding. The color is Harbour Blue, from Team Wholesale (link on this page).

That's interesting to know that vinyl siding isn't all paint. A color like the one in the siding is bringing me some ideas about what to do with my aunt's house. Both my brother and I are coming up with plans on how to change the exterior side of her home. http://www.milehighgutter.com/products/soffit-fascia-siding/