Mystery Babylon still exists today, and its official colors are red (scarlet) and purple). It will culminate in a global false prophet who will unite all religions of the world. Already, we can see the Pope chumming up to the Muslims.
Revelation 17:4
"And the woman was arrayed in purple and scarlet colour, and decked with gold and precious stones and pearls, having a golden cup in her hand full of abominations and filthiness of her fornication:" KJV