Nebula palette
Herbal Shrine
From #005042 ink through #007d68, #339882, #56a592 to #73c2ad light, Herbal Shrine 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 as a text pair.
tealnebulafive-stophigh-contrast
#005042
#007d68
#339882
#56a592
#73c2ad
The generator opens with #005042 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.