I think alot of it has to do with the particular lake. Even then from what I've seen from fishing the same lake for around 9 years it changes every few years. The first couple years green was the go-to color...now they won't touch it. Another one they won't touch is red, but go a couple miles up the road to the next lake and red knocks em dead...go figure. I think pink and orange are great choices, followed by purple, blue, and black. Like mentioned color at depth is important, but don't hesitate to think outside the box. Try to mix it up with contrasting colors...make your primary color stand out. Allways use flouresents and glows if possible.