You bet, black on black. Quite a few years ago- like over 20, I walked from the Metro station nearby past 8th and I Marine HQ Barracks and down to Anacostia Navy Yard, where there are fantastic static displays (like a section of the battleship Yamato with a 16 inch shell hole through 2.5 foot thick armor steel, and the steel was “fractured” like it was butter and the knife has put airholes in it as it past through).
The walk to the Yard was at that time— concerning as to street safety. Carrying gave some security to me, but still it was dangerous ground. Wouldn’t do it now.
I lived and worked in that neighborhood for a time. Heard gunfire from across the river all the time.
A few years back they pretty much gentrified 8th from Pennsylvania south to the Marine Baracks. But once you got south of the freeway, heading down to the Navy Yard, it got really, really iffy.