I have no idea, but two popped into my head straight away..
ANYHOW: on with the show. Blue. Obviously a popular colour with the Simple Girls, and I seem to use it a lot as well. Love me a nice strong navy blue, or a washed out more denim like I have used today, its a very versatile colour.
Another one of those that don't get any simpler, with not one jot of patterned paper anywhere! Created using a CZ template, printed at home and dropped onto some heavy doublesided blue paper (there was an awful pattern on the other side, but I like this plain, linen like blue). Some brads and done.
Don't be shy folks, we would love to see your own pages of blue, or green or orange or yellow etc, you know the drill, just leave a link in the comments or upload to flickr, just make sure to tell us!