Red is said to increase enthusiasm, stimulate energy and increase the blood pressure, respiration, heartbeat, and pulse rate.
Red represents beauty in many languages and cultures.
Red amulets are worn in many cultures to prolong life.
Red is the highest arc of the rainbow and is the first colour you lose sight of at twilight.
The longest wavelength of light is red.
Red is the colour of extremes. It is the colour of passionate love, seduction, violence, danger, anger, and adventure.
Our prehistoric ancestors saw red as the colour of fire and blood – energy and primal life forces – and most of red’s symbolism today arises from its powerful associations in the past.
Red is a magical and religious colour. It symbolised super-human heroism to the Greeks and is the colour of the Christian crucifixion.
Red was almost as rare and as expensive as purple in ancient days, a fact that may explain its magic and power.