Rubber legs

[Hoosierdaddy]

Other than the traditional black or white for legs on flies and poppers, what other color would you use for Bass and Bluegill? I know chartreuse would appeal to the Smallies, but so does anything with orange or brown. Then there's the red/blood theory. What do you guys think?

[smoothlures]

For red/blood... Fish don't see blood. They eat their prey whole, or if it's mangled/dead/whatever, the blood has already dispersed. They can smell it, but they don't relate a smell to a color. That simple. Now that's not to say they might not want the extra red color in it.
For legs on poppers I would stay to black or white. Anything else isn't really needed IMO as they'll probably only be seeing a silhouette of it anyway. It's a reaction strike, not something that sits in front of them while they decide to eat it or not.

[deathb4disco]

This fly is one of the most popular at Callaway Gardens (Georgia) for big bream:

http://www.warmwaterflytyer.com/patterns6.asp?page=13

They sell them in the fly shop there, and they all have chartreuse legs. That's not to say white, black or some other color wouldn't also work, but chartreuse was the color all the guides fished with.