It's called Alpine Green. Jim Carter sells a spay-can paint but I found it to be very thin and not very tough (I think it is a Pioneer Paint). A PPG code has been posted here and you might be able to find is by searching (I'll search for it tomorrow).
Pioneer Inc. Automotive Products, Meridian, MS. Fat Drying, Heat Resistant, Engine Enamel (11 oz spray can). Product Code: T-23V ALPINE GREEN (UPC: 27993 06720)
PPG paint information from bowtietim 
