In 1956 an all-over darker maroon, which more closely resembled the pre-nationalisation LMS livery, was re-introduced, except for the Southern Region, where locomotive-hauled stock was generally painted 'coaching stock' green (from July 1956-on) and a small number of express carriages on the Western Region which were in traditional GWR-style chocolate and cream.

With the reorganisation of British Railways in the mid-1960s, a complete break with the past was signalled by the introduction of a blue and grey livery which dominated all passenger rolling stock until the mid-1980s