1, color harmony: Brown is in harmony with the color and texture of crispy potatoes. Crispy potatoes usually have a brown appearance, so making billboards brown can better match the color of the product itself and make the whole advertisement more harmonious and unified.

2. Eye-catching: Brown is a more eye-catching color, which is easier to attract consumers' attention. When people see a brown crisp potato billboard, they will unconsciously be attracted by it and want to know more about the product.

3. convey a sense of quality: brown gives people a calm and high-quality feeling. As a snack, the color of billboards can also convey the quality of products. By using brown, we can convey to consumers that crispy potatoes are a delicious and high-quality snack. Therefore, the crispy potato billboard looks good in brown.