Acid palette
Opal Delta
Five acid stops with room to breathe — #006b69 grounds, #009996 and #3ab5b2 do the talking, #64c3bf softens, #82e0dc lifts. The tetradic bones keep it coherent across newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
cyanacidfive-stop
#006b69
#009996
#3ab5b2
#64c3bf
#82e0dc
The generator opens with #006b69 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.