What color is correct on the 71,72,ss 5 spoke rims/

Check online with Luttyschevy.com.They would be able to tell you the correct colors for your wheels.They sell a kit to redo them.

Take a look at this posting I left this past February, there are two links that I left from several years prior to that. One of them details the formula that I used to restore my wheels several years ago.

http://www.chevelles.com/forums/showthread.php?t=75801

Jim