Color Me Stupid

I'm really starting to think I've got some form of retardation or color-blindness going on. A few weeks ago I painted our fireplace. Since then, I've been trying to find a paint color for the rest of the room. As I type this, I have 5 different colors of paint splattered around various walls of our living/dining area. This does not include the 3 shades of yellow I had up there previously which I have then since ruled out. I thought I was going to paint the room the yellow (a.k.a. cowslip, whatever that is) that is shown in the picture. Unfortunately, when I did some of the trim the room started to look like a mix between the Redskins' locker room and McDonald's; neither of which I wanted to spend my time in.