Tru Color and Badger modelflex do railroad colors. You may be able to find Testors old stock. IMO.
Edit/Add: 1/30/2022 7:00 AM. In the real world, Dark colors, in this case, the blue, tend to change (quickly) via sunlight. Probably hard to find a fresh-out-of-the-paint-shop photo. IMO, Mike CT. I believe Steamtown, Scranton, PA had done some Jersey Central paint on F3's