1. Red: Indicates prohibition, stop, and danger. It is used for the border, background color, and slashes of prohibition signs. It is also used for cross-shaped symbols and slash symbols, and the background color of warning linear guidance signs. Yellow or fluorescent yellow: Indicates a warning and is used as the background color for warning signs.
2. Blue: used to indicate instructions, follow, and used to indicate the background color of the sign: indicate the driving information such as place name, route, direction, etc., used for the background color of general road guidance signs.
3. Green: Indicates driving information such as place names, routes, directions, etc., and is used as the background color of road signs for expressways and urban expressways.
4. Brown: Indicates the instructions of the tourist area and the scenic spot wake-up project, and is used for the background color of the tourist area logo.
5. Black: The background color of the text, graphic symbols and part of the logo used for identification.
6. White: used for the background color of the logo, text and graphic symbols and the border of some logos.
7. Orange or fluorescent orange: warning and guide signs for road operation areas.
8. Fluorescent yellow-green: Indicates a warning, and is used to pay attention to pedestrians, pay attention to the general rules of use of the shape of children's warning signs and traffic signs.