Module 10: Introduction to fundamental principles of colour, colour theory: hue, value, saturation, .................gray scale, cool and warm colour. Visual patterns, textures.
  Lecture 3:Colour interection
 

The Rule of Complementary:

Our eyes require any given colour to be balanced by its complementary and will spontaneously generate the latter if it is not present (Itten). This rule of complementary is the basis for harmonious design because its observance establishes a precise equilibrium in the eye.

Two forces determine the force of a colour :

•  It's brilliance/intensity.

•  It's extent

Brilliance of a particular hue is fixed but we can control its extent. Based on Itten's theory students may do some home work of different colour combination and its extent and brilliance. The ratios of brilliancy are: Yellow-9, Orange-8, Red-6, Green-6, Blue-4, and Violet-3

Fig. 145 Order in brilliance or intensity

In the above example, according to Itten, showing the balance of colour brilliance of yellow (rating -9) with violet colour (rating-3) the proportion ratio is 1: 3.