Era? If you are modeling the 1940's-1960's, WAB blue. If you are modeling the 1970's until now, MRL blue. Blue paint fades horribly, older blue paints were much darker (B&O, WAB, MP, N&W, C&O, etc). More modern paints have more stable pigments and allow brighter blues (ROCK, CR, MRL, B&M, etc.)
Wabash had two blues, one the early one that came with the F units as pictured. Later when repainted in the solid blue paint scheme the blue was a lot lighter. Scalecoat II makes the later version of the blue paint, for the older version it must be mixed with black to darken it. This is the solid blue paint scheme. Rick Jesionowski
So far the Wabash blue is leading by big numbers as I should have stated Fall of 1979 Loosely based on the BN/DRGW/RI/SLSF Picture I wanted to post was the Wabash early F unit scheme Couldn't find a decent photo
Vince, I tried Tru-Color paint and could not even get it to spray, so it went into the crapper along with acrylics. Rick Jesionowski
Thanks to all who looked and voted it shall be Wabash blue to go with my roads paint scheme Thanks again everyone
Welp Wabash blue I got was nothing like the darker Wabash blue I was after soooooooo. I ended up switching to L&N Dark Blue thanks for all the input y'all