Daylight palette
Halcyon Bookshop
From #005456 ink through #008083, #349c9e, #59a9ab to #75c5c7 light, Halcyon Bookshop 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.
cyandaylightfive-stop
#005456
#008083
#349c9e
#59a9ab
#75c5c7
The generator opens with #005456 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.