The hex color #3C9B5E is a dark color. The web-safe version is Hex
#339966. A complementary color is
#C364A1. The grayscale version is
#676767. A 20% lighter version of the original color is
#6FCE91, and Hex
#09682B is the 20% darker color. If the color is saturated by 10%, you get
#38A05D. If the color is desaturated by 10%, the color
#40965F is obtained.