I don't think we need much explanation here...but soft blues, greens, aquas, and seafoams are the pinnacle of calm, pretty, and serene. I don't like to "pick" a favorite color, but light blue is definitely up there!
Clockwise from top left: House Beautiful, Better Homes and Gardens, Sundance
Clockwise from top left: Martha Stewart, Everything Turqoise, Sundance
Clockwise from top left: Anthropologie, Better Homes and Gardens, Anthropologie