(Left) The chromatic circle of the temperaments of Mon. Lacroze.

There is a long history to the attempt to relate colour to temperament and personality. Hippocrates wrote on the 'Humours' saying they flowed like the colours of flowers. The Roman doctor, Galen was more specific. He associated the Sanguine or 'red' humour with a predominance of blood in the system; the 'white' or Phlegmatic humour with an excess of phlegm; the 'yellow' or Choleric humour with a glut of yellow bile; and the