Colour theory diagram (1810) by Philipp Otto Runge. Runge was one of the first colour theorists to incorporate variations in brightness into the colour wheel, creating colour spheres.
- Printed on a carbon neutral press using sustainably sourced, acid free Italian paper and vegetable based inks.
- Individually wrapped in a recyclable cellophane sleeve, with a 120gsm recycled kraft envelope.
- 170mm x 120mm
- Blank inside.