White is the base outfit for anyone coming in for New Year's Eve in Rio. It is not mandatory, you should not be wearing a color more predominant than white. However, since white is a bit light, you can use traditional accent colors for the bikini, trunks and undergarments. The different colors attract different kinds of luck. White is of course about peace. Green means good health. Yellow pertains for money. Red is to attract passion and romance. Purple denotes inspiration. Choosing the right underwear will make you look good and trendy. Remember, Brazil is the home of some of the most popular supermodels and current faces of many houses and you would not want to be caught dead in a nasty outfit.