[Fry]

I picked up a new 1970 GMC shortbed stepside and sent the vin away to vintage vehicle services.
It came back with a paint code “FC674M-special order” with a “628 Olive vinyl bench”.
What colour is that?
I’ve searched and can’t find anything. Under the dash is yellow and the truck is Canadian if that helps.
They included a sheet with paint codes but mine doesn’t show up.
Thanks for the help.