Save a few chars by utilizing short color keywords 

Replacing some basic colors hex value to (shorter) keyword

http://www.w3.org/wiki/CSS/Properties/color/keywords

// save 1 char:
#f00 -> red
#ffa500 -> orange
#800080 -> purple
#c0c0c0 -> silver

// save 2 chars:
#808000 -> olive

// save 3 chars:
#000080 -> navy
#808080 -> gray
#008080 -> teal