Tropical palette
Harbor Kiosk
From #007274 ink through #00a0a3, #3cbdbf, #67cacc to #86e7e9 light, Harbor Kiosk is a analogous progression that holds together at any size. Use it for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA for large text.
cyantropicalfive-stop
#007274
#00a0a3
#3cbdbf
#67cacc
#86e7e9
The generator opens with #007274 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.