The hex color #3eb73f is a light color. The web-safe version is Hex
#33CC33. A complementary color is
#C148C0. The grayscale version is
#676767. A 20% lighter version of the original color is
#71EA72, and Hex
#0B840C is the 20% darker color. If the color is saturated by 10%, you get
#3ABF3B. If the color is desaturated by 10%, the color
#42AF43 is obtained.