Mardi Gras , also called Shrove Tuesday,or Fat Tuesday, in English, refers to events of the Carnival celebrations, beginning on or after the Christian feasts of the Epiphany (Three Kings Day) and culminating on the day before Ash Wednesday.
Purple Represents Justice. Green Represents Faith. Gold Represents Power
Revelers know to wear costumes or at least dress in purple, green, and gold, and adorn themselves with long beads caught from the floats of previous parades