The Pink Triangle
In Nazi Germany, a downward-pointing pink triangle was sewn onto the shirts of gay men in concentration camps—to identify and further dehumanize them. If there's one thing that the Nazis did really well, it was to harness the power of symbols — starting with the rebranding of the swastika. In addition to the public propaganda, there were also the symbols used in the concentration camps. 
Auschwitz anniversary
When we think of symbols the Nazi regime forced people to wear, we think of the yellow star of David enforced on Jews. But another symbol, forced on gay men persecuted by the Nazis, has since been reclaimed by the very community the Nazis sought to oppress: the pink triangle. Symbolism and imagery have always been at the forefront of human expression: from cave paintings to heraldry to modern. The monument consists of three large pink triangles that form a bigger triangle. It was built to commemorate everyone who had died because of their sexual orientation.
Reclaiming the Pink Triangle
A pink Union Jack, with the blue triangles of the Union Jack changed to pink in reference to the pink triangle symbol, was created by a gay man, David Gwinnutt, to express his "pride in being gay and British." [33][34][35] Use of the pink triangle symbol is not without criticism. When we think of symbols the Nazi regime forced people to wear, we think of the yellow star of David enforced on Jews. But another symbol, forced on gay men persecuted by the Nazis, has since been reclaimed by the very community the Nazis sought to oppress: the pink triangle. Reclaiming the Pink Triangle. From a Nazi label to a symbol
The yellow Star of David is perhaps the most famous, but there were variations on that, too. A prisoner who was both Jewish and gay, for example, would have two triangles: the bottom one would be yellow and the top would be pink, forming a two-colored Star of David. And that's what brings us to the pink triangle. Pink triangles were originally used in concentration camps to identify gay prisoners. Before the pink triangle became a worldwide symbol of gay power and pride, it was intended as a badge of shame. The Pink Triangle
Just as the Nazis forced Jewish people to wear a yellow Star of David, they forced people they labeled as gay to wear inverted pink triangles (or ‘die Rosa-Winkel’). . 
How Nazi Pink Triangles Symbol Was Reclaimed for LGBT Pride
In the concentration camps where the Jews were compelled to wear yellow stars, the homosexuals were forced to wear, pink triangles, and were treated as the lowest of the low by the Nazis. .
Pink triangle
Gay men wearing the pink triangle in a Nazi concentration camp. (Stock image) On Holocaust Memorial Day , the 80th anniversary of the liberation of Auschwitz, PinkNews takes a look at the significance of the pink triangle, the symbol that was used to identify queer men in the Holocaust. .
The Yellow Star and the Pink Triangle
Badges in different colors were used for corresponding categories of prisoners, as you can see in this chart. Pink was used to identify homosexual men, bisexual men and transgender women. The yellow star indicated the Jewish people, as you probably already knew. The red triangles were meant for possible threats to the Nazi-regime, such as the communists and the social democrats. The black. .