Monochrome palette
Umber Lighthouse
Umber Lighthouse runs #006489 through #0090c2, #38ace0, #62bbe7 to #8ad7ff 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.
cyanmonochromefive-stop
#006489
#0090c2
#38ace0
#62bbe7
#8ad7ff
The generator opens with #006489 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.