In the 90s there was a huge interest in Nostradamus and his prophecies. Like a dumber Da Vinci code (not as dumb as the Bible code). The one thing I remember from all those stupid TV shows: the forces of the Antichrist would be associated with a certain color hat.

I don't remember if Nostradamus specified a color, but the show I watched used the example of a sky-blue hat. UN troops wear sky-blue helmets.