Jewel palette
Marble Delta
From #00457c ink through #076dbb, #3289d9, #5399dd to #6fb5fc light, Marble Delta is a tetradic progression that holds together at any size. Use it for flower-shop wraps and delivery van livery together. The darkest and lightest stops clear AA as a text pair.
skyjewelfive-stophigh-contrast
#00457c
#076dbb
#3289d9
#5399dd
#6fb5fc
The generator opens with #00457c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.