Monochrome palette
Copper Alley
From #004755 ink through #007186, #308ca2, #529aac to #6eb6c9 light, Copper Alley is a analogous progression that holds together at any size. Use it for indie game interfaces with a strong day-night rhythm. The darkest and lightest stops clear AA as a text pair.
cyanmonochromefive-stophigh-contrast
#004755
#007186
#308ca2
#529aac
#6eb6c9
The generator opens with #004755 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.