Thanks for the search tip Maco
I had done some searching on the forums but never found a color name.
I also chased a guy at Kennys Auto Paint at Carramar that had mixed this color before.
He has since left but I tracked him down to a holden dealer.
He couldn't help with the exact color name and didn't have a formula either.
Using that exact search term I have now found a photo here
http://fefcholden.org.au/forum/index.php/topic,11789.0.html Also I found threads with different suggestions.
Airfix M-18 or Airfix M-8 which appear to be model airplane paints.
Like the green on FC Commericals
Like the flat green school chalkboards
Matt Green with a tinge of Blue