Noir palette
Heather Brook
From #00517c ink through #007ab9, #3396d7, #58a5dd to #74c2fb light, Heather Brook is a triadic progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skynoirfive-stop
#00517c
#007ab9
#3396d7
#58a5dd
#74c2fb
The generator opens with #00517c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.