I’ve been slowly painting the interiors of my Phase III Superliners from MTH with dark blue seats and white arm rests and backs. It seems to be the most common color combo I could find pics of and it also what I remember riding on way back when as a kid.
I start by laying down a base of white and then add the blue. I chose to leave most of the cars flooring and walls the tan that it came in from the factory to keep the interior from getting too dark. It is also hard to see the floor in all but the lounge car. Have fun with your project!
BTW, if you Google “2019 Amtrak ski train lounge car photo” you will get an Amtrak publicity photo that shows the blue and white interior.
