Paint for EMD Prime Mover

Can anyone suggest a source for color photos of an EMD Prime Mover, or even suggest the proper paint scheme?

Any photos I’ve seen show EMD 567’s, 645’s & 710’s painted a medium to light gray.

The most common EMD color for the engineroom and locomotive interiror was a light grey. Some railroads specified a light tan and a few a light green. Everything inside the locomotive – cab, engine room, engine, main generator, etc., got the same color. With the advent of safety cab locomotives some railroads began specifying a different color for the cab interior.

RWM