The hex color #03d73f is a light color. The web-safe version is Hex
#00CC33. A complementary color is
#FC28C0. The grayscale version is
#5E5E5E. A 20% lighter version of the original color is
#36FF72, and Hex
#00A40C is the 20% darker color. If the color is saturated by 10%, you get
#00E33C. If the color is desaturated by 10%, the color
#0CCB42 is obtained.