Color Spheres Greeting Card


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This vibrant vintage-inspired card has been adapted from "Color Theory Diagram" (1810) by Philipp Otto Runge. Runge was one of the first color theorists to incorporate variations in brightness into the color wheel, creating color spheres. The card includes a kraft paper envelope and is blank on the inside, providing ample space for a message.

  • 300 gsm Italian paper, 120 gsm recycled kraft, and vegetable-based inks
  • 6.69" x 4.72"
  • Made in the UK