When you walk down the street, don’t you think there is more cinnabar red on the street than the other cities?Like a gate of a shrine, cinnabar red use for somewhere holy and important.It was believed the color expressing the dynamism of life and protective color from knell and other bad things.

Before to visiting a god, people clean themselves passing through a shrine’s gate not to take social disgrace to the holy area.
It says, originally the power holder of ancient time was using the color for his flags. And the shrine which he ordered to build had the color.
The cinnabar red is known as noble color.