Noir palette
Tranquil Abbey
Tranquil Abbey runs #00436c through #256b9e, #4286bb, #5d95c2 to #78b1e0 in five measured steps, the analogous structure keeping every neighbor honest. Reach for it for book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
skynoirfive-stophigh-contrast
#00436c
#256b9e
#4286bb
#5d95c2
#78b1e0
The generator opens with #00436c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.