Noir palette
Topaz Marsh
Five noir stops with room to breathe — #00456c grounds, #046da7 and #3188c4 do the talking, #5297cb softens, #6eb4e9 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.
skynoirfive-stophigh-contrast
#00456c
#046da7
#3188c4
#5297cb
#6eb4e9
The generator opens with #00456c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.