Parts of Tartan

[figheadair]

Cross posting of something I wrote on my FB page.

Here's a graphic representation of how the 6 pure colours interact to produce 30 half tones in which diferent pure colours cross. It’s a wonderful example of the exponential growth in variations as another pure colour is added:

• 4 pure colours = 12 half tones.
• 5 pure colours = 20 half tones.
• 6 pure colours = 30 half tones.

The difference between combinations of the same two colours, for example; blue crossing green and green crossing blue is obvious.