Monochrome palette
Spruce Lighthouse
Spruce Lighthouse runs #177742 through #4fa16c, #6cbe87, #87cb9c to #a3e8b8 in five measured steps, the tetradic structure keeping every neighbor honest. Reach for it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
greenmonochromefive-stop
#177742
#4fa16c
#6cbe87
#87cb9c
#a3e8b8
The generator opens with #177742 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.