Don't feel bad. I had a colleague tell me that my wardrobe consisted of these colors: purple, blue, green, black with a little red. I went home shocked...looked in my closet and found she was right...rofl. I looked at my fabric and saw the same thing except I buy muslin instead of black. I just try to live with it and buy fabrics outside my comfort zone when I am "forced" to do so by a project or when I find a scrap bag with lots of colors.