In Brazil's Réveillon celebration, white clothing is traditionally associated with peace and good luck.
Many Brazilians wear white on New Year's Eve, especially during large coastal celebrations such as Rio de Janeiro's Réveillon. The color is commonly connected with peace, renewal, and hopes for a harmonious year. People may also combine white clothes with other colors whose popular meanings relate to wishes such as love, money, or health.
Rio's celebration at Copacabana Beach adds several other traditions, including fireworks, music, and offerings associated in some practices with Iemanjá, a deity honored in Afro-Brazilian religions. White clothing is widespread, but it is not a legal requirement or a universal religious rule. Clothing customs can vary by region, family, and personal belief, so the color's meaning should be understood as a popular cultural association rather than a single national ceremony.