Just to clarify regarding the new PDF because some might be unfamiliar with it.
MAP = the British Ministry of Aircraft Production. Although the paint colours were applied to RAF aircraft and promulgated within RAF orders the official paint colour standard swatches were "owned" and issued by MAP because they went to all the aircraft factories too.
There would always be slight variance between the RAF stores paint colours and the aircraft factory colours due to different sources of procurement although both were promulgated from the same standards. However the colour standards themselves were constant and formed the requirement to which all paint and aircraft manufacturers were expected to match their paints.