Ontario Northland original green color match?

[engineman1]

I am desperately trying to find a matching color (either straight up or a mixture) that will match, as close as possible, to the original green color used on the Ontario Northland Alco S-2 diesel switchers or their F units. I tried contacting the O.N.R. SIG, but no one will reply[V] Can anyone out there give me some assistance? Thanks if you can and Thanks for at least listening to my plight.
Engineman1