The hex color #3bb74f is a light color. The web-safe version is Hex
#33CC66. A complementary color is
#C448B0. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#6EEA82, and Hex
#08841C is the 20% darker color. If the color is saturated by 10%, you get
#36BF4C. If the color is desaturated by 10%, the color
#40AF52 is obtained.