When the hanky code was devised back in the 70s, bare sex / safe sex - there was no difference. But barebackers do seem to have their own: dark (navy) blue with white dots.
The navy blue of course represents anal sex (top if you were it on the left) and then the white dots represent the semen. Pretty clever @ least
(You think I have way too much time on my hands don't you now that I know this?)
