Petrichor palette
Kiln Mill
Five stops tuned to sit together without fighting — #00696c ink anchors the set, #81dee0 opens it up, and #00979a, #3ab3b6, #63c1c3 cross the middle in a tetradic arrangement. Kiln Mill suits event posters that compete with a wall of other posters. The darkest and lightest stops clear AA for large text.
cyanpetrichorfive-stop
#00696c
#00979a
#3ab3b6
#63c1c3
#81dee0
The generator opens with #00696c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.