Monochrome palette
Leaden Square
Leaden Square runs #006c94 through #0098ce, #3ab5ec, #66c3f3 to #a0deff 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 for large text.
cyanmonochromefive-stop
#006c94
#0098ce
#3ab5ec
#66c3f3
#a0deff
The generator opens with #006c94 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.