What color base is good for billboards?

You are asking what color door head goes with the white letters on the billboard. The white letters can go with black background, blue background, green background and red background. Black should be considered according to the industry. Many people don't like the black background on the door and the red background is a bit earthy. If it is not up to grade, the blue background and green background can be used in some catering industries, fruit and vegetable industries, etc., which repre sents green and environmental protection, and food-related industries. It will be all right.