The hex color #18d77d is a light color. The web-safe version is Hex
#00CC66. A complementary color is
#E72882. The grayscale version is
#797979. A 20% lighter version of the original color is
#4BFFB0, and Hex
#00A44A is the 20% darker color. If the color is saturated by 10%, you get
#0EE07D. If the color is desaturated by 10%, the color
#22CE7D is obtained.