The hex color #3db37e is a light color. The web-safe version is Hex
#33CC66. A complementary color is
#C24C81. The grayscale version is
#7A7A7A. A 20% lighter version of the original color is
#70E6B1, and Hex
#0A804B is the 20% darker color. If the color is saturated by 10%, you get
#37B97E. If the color is desaturated by 10%, the color
#43AD7E is obtained.