The hex color #31B05B is a light color. The web-safe version is Hex
#339966. A complementary color is
#CE4FA4. The grayscale version is
#696969. A 20% lighter version of the original color is
#64E38E, and Hex
#007D28 is the 20% darker color. If the color is saturated by 10%, you get
#2BB75A. If the color is desaturated by 10%, the color
#37A95C is obtained.