Noir palette
Opal Bluff
Opal Bluff runs #004e82 through #2877b6, #4693d4, #63a2da to #7fbff8 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 for large text.
skynoirfive-stop
#004e82
#2877b6
#4693d4
#63a2da
#7fbff8
The generator opens with #004e82 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.