I don't think there is a magic lure or color but I bet we can all think of at least one body of water we fish where a specific bait or color is just the bomb-diggity. I've fished a river for years where color makes a big difference when grub fishing. Smoke with red and black flake outfishes any other color on this river and has for as long as I've fished it. I've fished multiple colors from the same manufacturer, at the same time, in the same holes and drew blanks, switch to the smoke red/black flake and fish on.