Nebula palette
Leaden Lagoon
Five stops tuned to sit together without fighting — #005167 ink anchors the set, #74c2df opens it up, and #007c9c, #3397b8, #58a5c2 cross the middle in a analogous arrangement. Leaden Lagoon suits hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
cyannebulafive-stop
#005167
#007c9c
#3397b8
#58a5c2
#74c2df
The generator opens with #005167 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.