Noir palette
Crimson Glade
Crimson Glade runs #004568 through #006ea2, #2f89bf, #5298c6 to #6eb4e4 in five measured steps, the split-complementary 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
#004568
#006ea2
#2f89bf
#5298c6
#6eb4e4
The generator opens with #004568 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.