Mardi Gras is the celebration of the beginning of the Catholic Lenten season. Mardi Gras is French for "fat Tuesday" and embodies the abandonment and indulgence that many engage in before plunging into the 40 days of Lent that immediately follow. The beads that many revelers wear and pass around during the festivities are purple, green and gold, representing not just the celebration's Catholic roots, but also an homage to a Russian czar.

There is some dispute as to the exact meanings of the three official Mardi Gras colors chosen to represent the day. The colors are thought to have ties to the Catholic religion and its traditions. The generally accepted meanings are: justice, represented by the color purple; faith, represented by green; and holy power, symbolized by gold.

The three colors have a much more practical origin, too. Purple, green and gold became the recognized colors of the New Orleans Mardi Gras celebration thanks to a visit to New Orleans by the Grand Duke Alexis Romanov of Russia. The Rex or elected king of the festivities in 1872 dedicated the annual celebration to the city's distinguished visitor by naming the colors of the House of Romanov the official colors of Mardi Gras.