Pastel palette
Sumac Foundry
From #3859cd ink through #4a6fe5, #987400, #658dff to #b98e00 light, Sumac Foundry is a tetradic progression that holds together at any size. Use it for book covers that read at thumbnail size.
skypastelfive-stop
#3859cd
#4a6fe5
#987400
#658dff
#b98e00
The generator opens with #3859cd as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.