The hex color #39de3d is a light color. The web-safe version is Hex
#33CC33. A complementary color is
#C621C2. The grayscale version is
#717171. A 20% lighter version of the original color is
#6CFF70, and Hex
#06AB0A is the 20% darker color. If the color is saturated by 10%, you get
#33E938. If the color is desaturated by 10%, the color
#3FD342 is obtained.