Arminia took the club colours blue, white and black upon their foundation in 1905. The colours haven't changed though the current club colours are black, white and blue. Despite this, Arminia played their first match in an orange kit. Arminia's home kit was blue for most of the time while their shorts and socks were white. The team that won promotion to the Bundesliga in 1970 wore a blue shirt with thick white stripes. The away kit was mostly all white while green shirts were worn in the 1990s.

The crest consists of a flag with the club's colours black, white and blue from left to right. The white part of the flag includes the letter A for Arminia. The flag is surrounded by a wreath of oak.