Monochrome palette
Steely Estuary
Dark anchor, working middle, light release: #286000, #418d0e, #5da936, #76b659, #91d475 form a tetradic monochrome set with somewhere to stand at every lightness. Made for bike-shop liveries that survive mud and sun. The darkest and lightest stops clear AA for large text.
chartreusemonochromefive-stop
#286000
#418d0e
#5da936
#76b659
#91d475
The generator opens with #286000 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.