The hex color #20841c is a dark color. The web-safe version is Hex
#339933. A complementary color is
#DF7BE3. The grayscale version is
#404040. A 20% lighter version of the original color is
#53B74F, and Hex
#005100 is the 20% darker color. If the color is saturated by 10%, you get
#1D8B18. If the color is desaturated by 10%, the color
#237D20 is obtained.