An old gent I had the pleasure of knowing on and off the water years ago made an annual pilgimage to fish a few of Oregon's smaller rivers for chinook, season after season. The fly he frequently chose was dressed as follows:hook: wet fly, heavy wire, down eye
thread: orange
tail: orange bucktail
body: gold flat mylar, wide
hackle: soft orange saddle, palmered
wing: green bucktail, tied under shank and extending just past bend
eyes: large gold bead chain
The fly was tied rather sparse, with the tail and wing in proportion to the thin tinsel body. The fly rode upside-down due to the bead chain eyes and the position of the wing. No other flash was incorporated. The hair he used was neither "hot" nor fluorescent; the orange was just a nice, bright orange, and the green was probably what most people would call grass green. There were similar patterns he fished, but this is the one he spoke of most often and the one he gave me samples of. He fished it on a 10wt sinking shooting head.
Bosses, comets, and fatal attractions might also be good platforms to tie in duller colors.