The hex color #18DF5E is a light color. The web-safe version is Hex
#00CC66. A complementary color is
#E720A1. The grayscale version is
#727272. A 20% lighter version of the original color is
#4BFF91, and Hex
#00AC2B is the 20% darker color. If the color is saturated by 10%, you get
#0FEA5C. If the color is desaturated by 10%, the color
#21D460 is obtained.