There were 512 47's so 4 never carried BR, so the whole class didn't carry BR Blue. There are a few other Liveries that 57's never carried:
Regional Railways
Load Haul (either version)
Transrail (either version)
Mainline Freight (either version)
EWS/EW&S
RF General (only carried by 50149/37104 & 86/6's, There was another 37, 67X that carried it but only for publicity pictures)
Then there are more of the 'post privatisation' liveries (GNER/GBRF), I have only listed the ex BR and first round of Privatised liveries I can remember.
Al