It is a common choice for men to buy happy characters with red background and yellow background. In the traditional culture of China, the red background represents auspiciousness and celebration, symbolizing the holding of happy events and the arrival of good luck. Red is considered as an auspicious color, so happy characters with red background are often used in wedding activities. The yellow background also has auspicious meaning. In China culture, yellow symbolizes light and wealth, so happy characters on the yellow background are often used for celebrations. In short, whether it is red or yellow, the choice of happy role mainly depends on personal preference and occasion needs.