A great tip for adding color to your wardrobe is to pick your favorite colors and make sure everything in your main wardrobe fits with that palette. By doing this you will increase your number of options and reduce feeling like you have nothing to wear!
What's your favorite color to wear? Do you usually buy similar colored clothes or do you buy whatever catches your eye?
I seem to got through phases. I went through a black/goth phase in high schoo. Then, later on as an adult a red phase. Then, a purple/peacock colors phase. Right now, I am into browns! : ) Sounds kind of drab, but it is really working for me! : )