Black and white american flag with red and blue stripe meaning. At it s essence the thin red line is a symbol used by fire departments to show respect for firefighters injured and killed in the line of duty. Thin blue line flag from flags thin green line on the american flag white american flag with blue stripe thin blue line and red flags black american flag a call for the thin purple line 2018 10 01 securitywhat does the black and white us flag with one purple stripe mean quorawhat does the black read more. The flags flown friday looked like a black and white american flag white a blue stripe across the center. White us flag with one purple stripe thin red line flag firefighters red stripe transpa background png american flag one blue stripe krafty other thin line flags u s a call for the thin purple line 2018 10 01 securityother thin line flags u swhat does the black and white us flag with one purple read more. The flag which shows a thin blue stripe in place of one of the flag s 13 red stripes is meant to show support for law enforcement but it has been associated at times with white nationalists. A black and white american flag with a thin blue line across its center appeared among the confederate flags toted by the white supremacists and neo nazis during the violent protests. Here s an explainer on what they mean and where they came from. Patriot wood s thin red line wood flag integrates the prominent red stripe of the thin red line emblem into a black and white version of the american flag for a beautiful and symbolic combination.