Colour

Every colour has a purpose. Although many people think they are chosen at random.

White signifies purity and integrity.

Black intimidates. Black is conservative, mysterious and engraved on the collective unconscious.

Goodies wear white, baddies wear black.

Imagine if The White House was called The Black House.

Red shocks and paralyses.
Yellow attracts attention.
Orange confuses.
Green calms things down. It also gives the go-ahead.
Blue soothes.