Nebula palette
Parchment Dock
Five nebula stops with room to breathe — #004e45 grounds, #007a6d and #329587 do the talking, #55a296 softens, #72bfb2 lifts. The analogous bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
tealnebulafive-stophigh-contrast
#004e45
#007a6d
#329587
#55a296
#72bfb2
The generator opens with #004e45 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.