British Rail's new corporate image liveries were developed in the mid-1960's. The familiar rail blue locomotives with blue and grey passenger coach livery, along with the InterCity express train marketing brand, became the standard livery from 1967.
In the mid-1980's brightly coloured sector liveries began to appear, with principal expresses gaining a distinctive InterCity livery, while Network South East formed a coherent image for the commuter belt.
The corporate style blue & grey livery has returned to use in the 2000s as heritage railways and mainline tour sets have been painted to match blue-painted preserved diesel locomotives.