Pink Because of this, the pink triangle has become a symbol of the modern gay rights movement. The transition to pink as a sexually differentiating color for girls occurred gradually, through the selective process of the marketplace, in the 1930s and 40s. In the 1920s, some groups had been describing pink as a masculine color, an equivalent of the red that was considered to be for men, but lighter for boys. But stores nonetheless found that people were increasingly choosing to buy pink for girls, and blue for boys, until this became an accepted norm in the 1940s. In optics, the
Black triangle (badge) and Sinti people, and others. Many black triangle prisoners were mentally disabled or mentally ill. Nazis considered homosexual women asocial and a threat to German society, and the badge was used to identify them. In the 1970s, the black triangle was first used as a symbol of pride and solidarity by lesbians in the United Kingdom; and its symbolic use was introduced in North America through the "women's peace camp movement". It has also been adopted in remembrance of lesbians who suffered and died at the hands of Nazis. Some lesbians wear it for "historical precision". Some UK groups concerned