On all the bodies of water that I have fished for any length of time, purple has produced very well. My father started me out on a purple 7" twirl tail worm, and I still have them in my tackle box.
I agree that green pumpkin is a great color to have, as well as red shad. Another color that seemingly gets lost among all the colors is plain black. It's a great color to have as a back up.
Another color is chartreuse pumpkin, which is a color that I used extensively through the Zoom products.