White characters on a red background are conspicuous, and banners with white characters on a red background are suitable for other general publicity slogans, such as venue slogans, team slogans, employment slogans, fire-fighting slogans, etc.

Government departments have no hard and fast rules on banner propaganda. They are all unwritten rules, not so dead. In terms of font and color, the white characters are bold and the yellow characters and banners are basically red. Because of the low cost and good publicity effect, government departments now use banners to publicize.