The hex color #3da77e is a light color. The web-safe version is Hex
#339966. A complementary color is
#C25881. The grayscale version is
#767676. A 20% lighter version of the original color is
#70DAB1, and Hex
#0A744B is the 20% darker color. If the color is saturated by 10%, you get
#37AC7F. If the color is desaturated by 10%, the color
#43A27D is obtained.