The Tradition color is red but you can use white.
Purple and Pink
There are four candles on the outside of the Advent wreath. There is one pink candle and three purple candles.
advent wreath advent candles
the candles meanwaiting,expectationpreparation
The candles on the Advent wreath represent the coming of the light of Christ. The three purple candles represent hope, love, and peace.
An advent wreath normally contains four candles, three violet for penance, and one rose candle for joy, that is for the third Sunday of Advent.
There is no settled tradition regarding the Advent Wreath. Roman Catholics prefer 3 purple and 1 rose (for the Joyful third Sunday). Many protestants have begun to use blue candles, blue being the color of hope. Perhaps the key factor for choosing colors is what do you want the Advent Wreath to symbolize- hope, preparation, penitence?
The U.S. uses it
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Each candle on an Advent wreath represents one of the Sundays of Advent. A candle is lighted at the beginning of Mass on that Sunday. An Advent wreath in the home is lite for whatever reason that person has an Advent wreath. They are not an official liturgical thing.
The Advent Wreath is not a sacramental of the Church and is not regulated by the Church. Not regulated by the Church means that you may use any color you wish, although most Advent wreaths are composed of metal (to hold the candles), greens (to cover the metal), three violet candles, and one rose candle. (the liturgical colors which approximate purple and pink).
The Advent Wreath was originally a Lutheran tradition which marks the four weeks of Advent. Made of evergreen branches layed horizontally, is had four candles representing the weeks. We use the Advent Wreath today but it is refered to as a Christmas wreath.
Four, they represent the four Sundays of Advent.