On the Web: A Preview of Google Instant Previews: Is it a Game Changer?

7. Look carefully at your colors, especially the ones you use in your backgrounds and carousels. Why? There are some colors that just don't compress well. Purple, for example, never looks good in 
highly compressed images. With that said, background color will make a difference in your instant previews. Overstock.com doesn't use much color at all on its site and it really shows in its previews; they're very lackluster in comparison to some of 
its competitors.