The hex color #40a30a is a dark color. The web-safe version is Hex
#339900. A complementary color is
#BF5CF5. The grayscale version is
#4F4F4F. A 20% lighter version of the original color is
#73D63D, and Hex
#0D7000 is the 20% darker color. If the color is saturated by 10%, you get
#3FAB03. If the color is desaturated by 10%, the color
#429B11 is obtained.