Nebula palette
Straw Fen
Dark anchor, working middle, light release: #004b63, #007599, #3190b5, #559ebe, #71bbdc form a tetradic nebula set with somewhere to stand at every lightness. Made for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
cyannebulafive-stophigh-contrast
#004b63
#007599
#3190b5
#559ebe
#71bbdc
The generator opens with #004b63 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.