The Safe Space Ally placard was designed to honor two important symbols within the LGBTQIA+ community. The background of the placard contains the six colors of the rainbow. In 1978, Gilbert Baker of San Francisco designed and made a flag with six stripes representing the six colors of the rainbow as a symbol of gay and lesbian community pride. While this flag began in San Francisco, today it can be seen all over the world as a sign of pride and community.
The text on the placard is presented in the shape of an upside-down triangle in honor of the "pink triangle." An upside-down pink triangle was originally used as a Nazi concentration camp symbol to label homosexual men. By the end of the 1970s, the pink triangle was adopted as a symbol of pride.