Nebula palette
Opal Delta
Five stops tuned to sit together without fighting — #00604f ink anchors the set, #7bd4bd opens it up, and #008e76, #37aa91, #5eb7a1 cross the middle in a tetradic arrangement. Opal Delta suits hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
tealnebulafive-stop
#00604f
#008e76
#37aa91
#5eb7a1
#7bd4bd
The generator opens with #00604f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.