The hex color #18b58e is a light color. The web-safe version is Hex
#00CC99. A complementary color is
#E74A71. The grayscale version is
#747474. A 20% lighter version of the original color is
#4BE8C1, and Hex
#00825B is the 20% darker color. If the color is saturated by 10%, you get
#0FBC91. If the color is desaturated by 10%, the color
#21AE8B is obtained.