Colour Sphere in 7 Light Values and 12 Tones
Complementary colours placed schematically opposite one another form the basis for Itten’s colour wheel, which was published in 1921 in the almanac Utopia. "Dokumente der Wirklichkeit" (Utopia. Documents of Reality). Itten was clearly influenced by his interest in Philipp Otto Runge’s "Farbenkugel" (colour wheel), and the studies of Josef Matthias Hauer.
Schimma, Sabine: “The Living Power of Colours. The Colour Theories at the Weimar Bauhaus” in: Ackermann, Ute;
Bestgen, Ulrike (Ed.): The Bauhaus Comes from Weimar, Berlin, Munich 2009.