Aurora palette
Emerald Chapel
Five aurora stops with room to breathe — #004b4f grounds, #00767c and #319197 do the talking, #549ea3 softens, #70bbc0 lifts. The tetradic bones keep it coherent across event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
cyanaurorafive-stophigh-contrast
#004b4f
#00767c
#319197
#549ea3
#70bbc0
The generator opens with #004b4f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.