Acid palette
Marble Gallery
Dark anchor, working middle, light release: #006055, #008e7e, #37aa99, #5eb7a8, #7cd4c4 form a tetradic acid set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
tealacidfive-stop
#006055
#008e7e
#37aa99
#5eb7a8
#7cd4c4
The generator opens with #006055 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.