Retro palette
Crackling Outpost
Five retro stops with room to breathe — #003f6f grounds, #1f67a5 and #3d82c2 do the talking, #5991c8 softens, #74aee6 lifts. The tetradic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
skyretrofive-stophigh-contrast
#003f6f
#1f67a5
#3d82c2
#5991c8
#74aee6
The generator opens with #003f6f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.