Yellow letters on a red background are good. The choice of white characters on a red background or yellow characters on a red background depends on the specific application scenario and design purpose. From a visual point of view, yellow looks grand and conspicuous, and may be more conspicuous than white. From the perspective of the five elements, red represents fire, yellow represents earth, and white represents gold. Fire generates earth, and fire restrains gold, so red and yellow characters are more auspicious. However, from the perspective of sign feng shui, the five elements of the background color are the most auspicious for the name, such as red with yellow characters; the five elements of the name are less auspicious than the background color, such as white characters with green background. White characters on a red background are more conspicuous and are generally used to remind people and attract attention. The color scheme with red background and yellow characters looks more gorgeous and is full of the atmosphere of traditional Chinese culture, making people feel a strong festive atmosphere from the inside out. Therefore, if it is an occasion to celebrate traditional festivals such as the Spring Festival and Mid-Autumn Festival, yellow characters on a red background will be more appropriate. Solemn statement: The answers are for reference only, please do not be blindly superstitious.