What color do the traffic signs represent?

1, with yellow background, black border and black pattern: warning sign.

2. The colors are white, red circle, red bar, black pattern and pattern layering: no sign.

3. The color is blue and the pattern is white: indicator.

4. Blue background, white pattern, green background for expressway, white pattern: guide sign.

5. Orange or fluorescent orange: warning and guiding signs in road operation areas.

6. Fluorescent yellow-green: a warning sign for pedestrians and children.

Extended data:

The shapes of traffic signs represent the following signs:

1, equilateral triangle: used as warning sign.

2. Circle: used to prohibit and indicate signs.

3. Inverted equilateral triangle: used as the prohibition sign of "slowing down and giving way".

4. Octagonal: used as the "stop and yield" no sign.

5. Fork: Used as a warning sign of "Railway Crossing Fork Sign".

6. Square: used for guiding signs, some warning, prohibition and indication signs, tourist area signs, auxiliary signs and notification signs.