The hex color #42e73f is a light color. The web-safe version is Hex
#33FF33. A complementary color is
#BD18C0. The grayscale version is
#787878. A 20% lighter version of the original color is
#75FF72, and Hex
#0FB40C is the 20% darker color. If the color is saturated by 10%, you get
#3DF239. If the color is desaturated by 10%, the color
#47DC45 is obtained.