Storm palette
Sumac Atelier
Dark anchor, working middle, light release: #5484c9, #0090ba, #009699, #38acd7, #07b4b8 form a tetradic storm set with somewhere to stand at every lightness. Made for event posters that compete with a wall of other posters.
skystormfive-stop
#5484c9
#0090ba
#009699
#38acd7
#07b4b8
The generator opens with #5484c9 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.