The hex color #37f70f is a light color. The web-safe version is Hex
#33FF00. A complementary color is
#C808F0. The grayscale version is
#6A6A6A. A 20% lighter version of the original color is
#6AFF42, and Hex
#04C400 is the 20% darker color. If the color is saturated by 10%, you get
#32FF06. If the color is desaturated by 10%, the color
#3CE918 is obtained.