The hex color #e40de9 is a dark color. The web-safe version is Hex
#CC00FF. A complementary color is
#1BF216. The grayscale version is
#9E9E9E. A 20% lighter version of the original color is
#FF40FF, and Hex
#B100B6 is the 20% darker color. If the color is saturated by 10%, you get
#EB00F1. If the color is desaturated by 10%, the color
#DD1CE2 is obtained.