Goethe’s observations were made in his garden, in the moonlight, and by candlelight rather than in laboratory settings. In his color charts, Goethe refers to the magenta region of the spectrum as “peach blossom.”

The “Edge of Color” flags are derived from the test cards that Goethe produced in order to demonstrate edge color phenomena to friends and colleagues. For Goethe, color could not be separated from the environment. Goethe’s Theory of Color is really a theory of perception, qualia, or “raw feels”.

These flags as color-test-cards demonstrate edge-colors that radiate from boundaries between light and dark shapes when viewed through a prism in daylight.