The hex color #3fb65f is a light color. The web-safe version is Hex
#33CC66. A complementary color is
#C049A0. The grayscale version is
#717171. A 20% lighter version of the original color is
#72E992, and Hex
#0C832C is the 20% darker color. If the color is saturated by 10%, you get
#3ABD5D. If the color is desaturated by 10%, the color
#44AF61 is obtained.