Monochrome palette
Harvest Heath
From #004e61 ink through #007995, #3294b1, #56a2bb to #73bfd8 light, Harvest Heath is a analogous progression that holds together at any size. Use it for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
cyanmonochromefive-stop
#004e61
#007995
#3294b1
#56a2bb
#73bfd8
The generator opens with #004e61 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.