Cam Identification??

I have a purple shaft I pulled out of a motor, I built the motor about 5 years ago and only run it a couple months before pulling it back out and bagging it up. Now I am going to use the block for a 408-rebuild but keeping all the old/new stuff in it for a later project. My problem is I dont have the the cam card or remember what I even put in it. Do any of you guys know how to identify what it is? I have heard about the paint chart but can't seem to find it anywhere and the numbers on the cam don't seem to mean anything.