Pastel palette
Umber Granary
From #005d5f ink through #008a8c, #36a6a8, #5db3b4 to #7ad0d1 light, Umber Granary is a analogous progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyanpastelfive-stop
#005d5f
#008a8c
#36a6a8
#5db3b4
#7ad0d1
The generator opens with #005d5f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.