The hex color #73e28e is a light color. The web-safe version is Hex
#66CC99. A complementary color is
#8C1D71. The grayscale version is
#A1A1A1. A 20% lighter version of the original color is
#A6FFC1, and Hex
#40AF5B is the 20% darker color. If the color is saturated by 10%, you get
#6EE98C. If the color is desaturated by 10%, the color
#78DC90 is obtained.