Tyrian Purple is a historic dye that was highly valued in ancient times due to its deep, rich color. It was extracted from a certain type of sea snail, which made it extremely rare and expensive. There are a few different names that can be used to describe this shade of purple. One possible synonym is "royal purple," as it was often worn by monarchs and other high-ranking individuals. Other possible synonyms include "imperial purple," "shellfish purple," or simply "purple dye." No matter what name it goes by, Tyrian Purple remains an iconic and sought-after color.