As has been mentioned...a Red will eat just about anything. A Speckled Trout is WAY more wiley/picky than a Red any day. Red's get spooky when they're in shallow, clean water, and that's where they're harder to catch. As is the case with just about any Game Fish, use more natural colors in clear water. But I'll throw these few up for grabs...some may already be posted somewhere on this forum, but...
Chartreuse/Red...my favorite Chartreuse, but with a little something extra, BKJ style...
12 oz.s Plastic
60 drops Chartreuse (non-X2)
1 Pinch Red Hilite Powder
1 Pinch .040" Red flake
1 Smidgen .015" Red flake
Smokey-G
14 oz.s Plastic
24 drops Black (non-X2)
50 drops Pearl Green Smoke (non-X2)
1 Smidgen .008" Gold flake
Avocado/Neon
12 oz.s Plastic
36 drops Green Pumpkin (non-X2)
1 Pinch .040" Red flake
1 Smidgen .015" Red flake
These 3 colors will cover most situations, the rest can be addressed with the different baits and presentations. Remember, a Red will eat anything a Speckled Trout, Flounder, Bass (LM and SM), Walleye, Striped Bass or Bluefish will.