The hex color #3fc95f is a light color. The web-safe version is Hex
#33CC66. A complementary color is
#C036A0. The grayscale version is
#787878. A 20% lighter version of the original color is
#72FC92, and Hex
#0C962C is the 20% darker color. If the color is saturated by 10%, you get
#39D15D. If the color is desaturated by 10%, the color
#45C161 is obtained.