Petrichor palette
Opal Harbor
From #005868 ink through #00849a, #35a0b6, #5badc1 to #78cade light, Opal Harbor is a triadic progression that holds together at any size. Use it for indie game interfaces with a strong day-night rhythm. The darkest and lightest stops clear AA for large text.
cyanpetrichorfive-stop
#005868
#00849a
#35a0b6
#5badc1
#78cade
The generator opens with #005868 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.