Aurora palette
Sienna Harbor
From #005760 ink through #008390, #359fac, #5aacb7 to #77c9d4 light, Sienna Harbor is a tetradic 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.
cyanaurorafive-stop
#005760
#008390
#359fac
#5aacb7
#77c9d4
The generator opens with #005760 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.