Practice question · Multiple choice
A studio prints the same grey logo on a red panel and on a green panel using ink from a single can, and the client complains that the two greys do not match. How does Chevreul's law account for the complaint?
Hints
- The ink is the same in both cases, so the difference cannot be in the ink.
- Ask what each ground induces in its neighbour.
Show the answer
D. Each ground induces its complement in the grey, making one read greenish and the other reddish
Why
The ground induces its own complement in whatever sits on it, so a red panel pushes the grey towards green and a green panel pushes it towards red. Both greys are the same ink and neither is seen as it is; the client is reporting the effect accurately and blaming the wrong stage of the process.
Practise Contrast, Harmony and Simultaneous Contrast
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