I will keep adding to this. https://medium.com/@tim.wallace_98924/they-say-colors-can-be-soothing-here-are-some-colors-c8b1b0e045fd?source=friends_link&sk=cd10ede2e4402447a02c8952d240fec0

Of course this happened outside shortly after I posted this.

Wiener Farbenkabinet, 1794. https://archive.org/details/WienerFarbenkab00/page/n519/mode/thumb

Zur Farbenlehre, 1810.

Sample Plate, 1920s. (Cooper Hewitt has loads of great stuff like this). https://collection.cooperhewitt.org/search/collection/?query=spectrum

As a former archaeologist, this wouldn't be complete without some Munsell thrown in. https://archive.org/details/AtlasMunsellcol00Muns/page/n1/mode/thumb

Favorite of the day. La Grammaire de la Couleur, 1882.

Last one for today. https://archive.org/details/manlypalmerhabox17hall/page/n4/mode/thumb

Only one today, but it's fun (or at least quirky).

Today's colors. https://www.tate.org.uk/art/artworks/plumb-untitled-august-1969-t01156

Spending lots of time indoors these days, so here's some for interiors. Color Schemes for the Home and Model Interiors, 1919. https://archive.org/details/colorschemesforh00frohuoft/page/9/mode/2up

Added aurora colors today. https://eol.jsc.nasa.gov/SearchPhotos/ShowQueryResults-Lightcycle.pl?results=158542953992802