i took a detour and wrote a little bit about using colors as predictors in Feature Engineering A-Z
https://feaz-book.com/miscellaneous-color
https://feaz-book.com/miscellaneous-color
Comments
The perfect book for this is The Secret Lives of Color.
Incredibly interesting short vignettes for how specific colors were created and used
https://www.amazon.com/dp/0143131141?ref=ppx_pop_mob_ap_share