Questions about the color of my Roadmaster come up from time to time.
The color code is BFF. B=Dover White/F=Colonial Blue/F=Colonial blue.

The Blue repaint is an exact match of the original dash board color. And , the original trunk lid interior color
F=Colonial Blue is not found on 1955 paint charts. For 1956 F=Cadet Blue.

Apparently
the spring (late 55) name for code F was Colonial Blue
the 56 name for code F was Cadet Blue
Then in '58 the name for code F is again Colonial Blue
The formula is Code F on the '56 chart (code F is Code F)despite the name difference

(my thread on V8Buick.com http://www.v8buick.com/showthread.ph...=Colonial+Blue
the charts