Retro palette
Oyster Fen
Five retro stops with room to breathe — #554100 grounds, #836700 and #9e822c do the talking, #aa924f softens, #c7ae6a lifts. The complementary bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
amberretrofive-stophigh-contrast
#554100
#836700
#9e822c
#aa924f
#c7ae6a
The generator opens with #554100 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.