How about a sign with white characters on a blue background?

The sign with white characters on a blue background is good. White characters on a blue background refer to white characters on a blue substrate. White characters on a blue background are the standard of government notice. First of all, blue is easier to identify and is not occupied by other industries. Secondly, after numerous experiments, it is proved that white characters on a blue background are the clearest and the easiest to identify. From the psychological point of view, the main reason why white characters on blue background are more comfortable is attributed to color psychology. Blue itself has a calming effect. The sign with white characters on a blue background is good. White characters on a blue background are indicators in traffic signs, and the color of the indicators is white characters on a blue background; Shapes are divided into circles, rectangles and squares. It is used to instruct vehicles and pedestrians to exercise in designated directions and places, and also plays a great role in organizing and guiding.