Sort of similar but more green than PRR green. Resembles Penn Central repaints done in PRR shops. Perlman wasn't interested in aesthetics, just the bottom line. The orange lettering was an improvement in PC white.
As a kid growing up in Oroville and in the Feather River canyon the green with Orange lettering was the norm, mind you it was 40+ years ago, brings back memories of the sounds of the trains at night in the canyon.