Appendix V | Colour and Form
Since colour is vibration, it is easy to see that it must also give form. Some of the most beautiful designs in the world have been produced by vibration. In his great book on Colour, Babbit takes red, yellow, and blue and gives them the forms of the triangle, the hexagon, and the circle. The triangle has the sharpest corners, thus it is appropriate to the energising fiery red. The circle, with no corners, represents the calm indwelling blue; and the yellow, which has energy and yet peace, partakes of the hexagon, which still has angles but yet approaches the shape of the circle.