More Owen Jones...surprise!
We're working our way through what I consider to be the more important snippets of great design advice found in his "Grammar of Ornament." (He should have asked me to edit this list before he published it, there's some repetition, only I would have had to have been born more than a hundred years earlier, and my parents hadn't met, yet.)
Today's snippet is:
PROPOSITION 24: [color, cont.] When two tones of the same colour are juxtaposed, the light colour will appear lighter, and the dark colour darker.