Storm palette
Granite Harbor
From #00686f ink through #00959f, #39b1bb, #63bfc7 to #80dce4 light, Granite Harbor is a tetradic progression that holds together at any size. Use it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
cyanstormfive-stop
#00686f
#00959f
#39b1bb
#63bfc7
#80dce4
The generator opens with #00686f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.