The colors green and red have been closely associated with Christmas for centuries. Green is the color of evergreen trees, which are a symbol of eternal life and the strength to endure the winter season. Red is the color of holly berries, which are a sign of rebirth and the hope that springs from the darkest days of the year. Together, these two colors represent the beauty and warmth of the Christmas season, as well as the joy and joyous nature of the holiday.