Asexuals
In August 2010, after a process of getting the word out beyond the Asexual Visibility and Education Network (AVEN) and to non-English speaking areas, a flag was chosen following a vote on a non-AVEN site. It has since been seen used on tumblr in various LGBTQ areas, but had been seen alongside other Sexual Orientations flags previous to formal election. The black stripe represents asexuality, the grey stripe the grey-area between sexual and asexual, the white stripe sexuality, and the purple stripe community. The AVEN logo is a triangle fading from white to black to symbolise the gradient between sexuals, gray-asexuals, demisexuals and asexuals. The ace of spades and ace of hearts are also used as asexual symbols since "ace" is a phonetic shortening of asexual. Generally, romantic asexuals use the ace of hearts as their symbol and aromantic asexuals use the ace of spades.
Read more about this topic: LGBT Symbols