#008026 has the sturdy look of a park sign after rain. Let it sit next to white and bright yellow for classic rainbow contrast, or use charcoal for a quieter version.
Tints
#008026
#1a8d3c
#339951
#4ca667
#66b37d
#80c092
#99cca8
#b2d9be
#cce6d4
#e6f2e9
#ffffff
Shadows
#008026
#007322
#00661e
#005a1b
#004d17
#004013
#00330f
#00260b
#001a08
#000d04