The equation of a colour matched by 17·0 red and 2·6 blue units, is as follows:—
Standard Glasses. Colour Developed.
Red. Blue. Violet. Red.
17·0 + 2·6 = 2·6 + 14·4
The colour developed is a red violet in these proportions.
A colour matched by
Standard Glasses. Colour Developed.
Red. Yellow. Orange. Red.
10·0 + 3·0 = 3·0 + 7·0
The colour developed is a red orange in these proportions.
A colour matched by
Standard Glasses. Colour Developed.
Yellow. Blue. Green. Yellow.
3·0 + 1·5 = 1·5 + 1·5
The colour developed is a yellow green in these proportions.