Ocean palette
Crimson Hollow
From #004d3d ink through #007962, #31947c, #54a18c to #71bea7 light, Crimson Hollow 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 as a text pair.
tealoceanfive-stophigh-contrast
#004d3d
#007962
#31947c
#54a18c
#71bea7
The generator opens with #004d3d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.