Natural colors are great for fooling trout but at times bright shiny flashy colors will work equally well or even better. My go-to colors are black, silver, white, yellow, olive, and minnow or shad patterns. It's hard to say certain colors work best but if your tackle box has a variety of colors including the top colors which are silver, gold, copper, minnow colors, orange, and chartreuse you will be able to cover all conditions.