What was the first gang color?

Answer 1

One of the first gangs to start the wearing of bandana colors were the Crips gang, which wear the color blue.

So, blue would probably be the one of the first gang colors. Next would be red, which is a color that the Bloods gang wear.

Answer 2

The Bloods gang has always worn the color red. They used to not wear any colors at all, but they saw their rivals the Crips wearing blue, so they decided to wear an opposite color & picked red. And of course the color red suits them since their gang name is ''Bloods''.