color is used symbolically in all cultures,and it plays an important role in ceremonies and festivities. yellow is a symbol of luck in peru,and it can be seen just about everywhere during new year celebrations-in flowers, clothing, and decorations. some peruvians say, ''the more yellow you have around you, the luckier you will be in the new year.'' yellow is also an important color to vietnamses, who use it at wedding and also on their flag, where it represents courage,victory,and sacrifice.in many cultures ,white symbolizes purity,which is why brides often wear white wedding gowns.