Marty,
The lower hull is an oxide red...it varies in shades but there's several colors in the Model RR world that come close, Tuscan Red, Boxcar red are a few.
Just remember that only the lower hull (below the waterline) is red. The upper half of the hull is 5-D Dark Gray up to the funnel tops, and 5-L Light Gray above that. The decks are natural teak.
Jeff