Acid palette
Kelp Marsh
Dark anchor, working middle, light release: #004e5e, #007990, #3294ac, #56a2b6, #73bfd3 form a tetradic acid set with somewhere to stand at every lightness. Made for packaging that photographs well under harsh retail light. The darkest and lightest stops clear AA for large text.
cyanacidfive-stop
#004e5e
#007990
#3294ac
#56a2b6
#73bfd3
The generator opens with #004e5e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.