The hex color #18f85e is a light color. The web-safe version is Hex
#00FF66. A complementary color is
#E707A1. The grayscale version is
#7A7A7A. A 20% lighter version of the original color is
#4BFF91, and Hex
#00C52B is the 20% darker color. If the color is saturated by 10%, you get
#0EFF5B. If the color is desaturated by 10%, the color
#22EB61 is obtained.