Back in my day, it was just called scene. Or as one of my scene kid friends called it, "Sceney-Weenies."
I used to dress like a scene kid from 12-15 years old and dyed my hair bright red mostly. I had blue hair for a bit before that became a stereotype, but I think I looked the best with the red hair. I had it red regardless of length, and even a little after I stopped being "scene" and finally cut my hair short.
I used to use Kbin.social but eventually it started to get overrun by spam when the servers worked.