Nebula palette
Topaz Boulevard
Five stops tuned to sit together without fighting — #4726a1 ink anchors the set, #aea6ff opens it up, and #6b56cb, #8472ea, #9386ed cross the middle in a tetradic arrangement. Topaz Boulevard suits book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
bluenebulafive-stophigh-contrast
#4726a1
#6b56cb
#8472ea
#9386ed
#aea6ff
The generator opens with #4726a1 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.