Acid palette
Umber Hollow
Five stops tuned to sit together without fighting — #005f77 ink anchors the set, #7cd2f0 opens it up, and #008bac, #37a7c9, #5fb5d2 cross the middle in a triadic arrangement. Umber Hollow suits newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
cyanacidfive-stop
#005f77
#008bac
#37a7c9
#5fb5d2
#7cd2f0
The generator opens with #005f77 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.