Pastel palette
Frosted Square
Five stops tuned to sit together without fighting — #00494e ink anchors the set, #6fb9be opens it up, and #00747b, #318f96, #539ca2 cross the middle in a complementary arrangement. Frosted Square suits book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
cyanpastelfive-stophigh-contrast
#00494e
#00747b
#318f96
#539ca2
#6fb9be
The generator opens with #00494e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.