Just been to order some main bearings, they asked which colour i had!? i had no idea so have come back to check my old ones.

Microcat list 4 different ones:

green
brown
yellow
blue

Engine is a Focus ST170

my old bearings so seam to have a blob of what looks to be brown paint on the edge of the bearings. is this the only way to tell them apart? It has these numbers stamped on the bearings:

938M 6333 C1B

any ideas or do i just go for the brown so to speak