This collection of five greeting cards features illustrations that accompanied nineteenth- and early-twentieth-century color theories. Capturing every hue in the rainbow, these vintage images are printed in England on an uncoated, light cream 300 GSM Italian paper, which is recyclable, biodegradable, and FSC certified. Each greeting card is 170 mm x 120 mm (approximately 5” x 7”) and blank inside, individually wrapped in a compostable wrapper made from plants, and paired with a 100% recycled, 110 GSM kraft envelope.

How to Make a Rainbow
Greeting card illustrating “how to make a rainbow,” adapted from An Introduction to Perspective: Practical Geometry, Drawing and Painting (6th ed., 1845) by the English painter Charles Hayter (1761–1835).

Color Spheres
Greeting card illustrating Philipp Otto Runge’s color spheres (1810). One of the leading artists of the German Romantic movement, Runge was one of the first color theorists to incorporate variations in brightness into the color wheel, creating color spheres.

Three Primitive Colors
Greeting card featuring the diagram “The Three Primitive Colours and Their Descendants” by Charles Hayter. Adapted from a hand-colored engraving in Hayter's A New Practical Treatise on the Three Primitive Colours (1826).

Daylight
Greeting card illustrating a spectra diagram created by William Allen Miller, adapted from the chromolithograph Spectra of Daylight through Coloured Glass & Vapours (1845). Miller also studied the spectrum of starlight and was one of the first scientists to determine what stars are made of.

Meanings of Colors
Greeting card illustrating the “meanings” of colors. Adapted from a color chart in Thought-Forms by Annie Besant and C.W. Leadbeater (1905).