L’harmonie des couleurs Pl.138

Édouard Guichard

1880

L’harmonie des couleurs Pl.138 by Édouard Guichard, 1880

This 1880 plate by architect Édouard Guichard looks like a psychedelic traffic sign manual, but it’s actually a serious scientific study on color visibility. Titled 'L'Harmonie des Couleurs,' the chart features bold geometric shapes—circles, triangles, and stars—set against stark black backgrounds to test which color combinations pop best from a distance. Guichard was exploring how we perceive color harmony, essentially creating a vintage guide for making sure important signals wouldn't get lost in the visual noise. It’s a fascinating glimpse into 19th-century design theory, where art met practical engineering to figure out the best way to say 'look at me!'

Technique
Chromolithograph
Material
Paper
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