Rainbow pride flag

The six stripe rainbow grew out of Gilbert Baker's 1978 original. Hot pink was dropped because the fabric was hard to source, and in 1979 turquoise and indigo were replaced by a single blue, giving an even number of stripes that could be split across both sides of a parade route.

This is the version most people picture when they think of a pride flag. It has flown at marches, city halls, and front porches around the world for more than four decades, and it is the base that many later flags build on.