It's not about pattern- or even a looser silhouette, dropped hemline, or low ponytail. For the Spring/Summer 2011 Collections that wrapped-up in Paris on Wednesday, it's all about the palette. Have a look at the gorgeous hues and pairings that make up S/S 2011.
Some links, to see more: Marc Jacobs, Rodarte, Valentino, Celine, Jason Wu, Miu Miu, and Jil Sander.