The hex color #de31d0 is a dark color. The web-safe version is Hex
#CC33CC. A complementary color is
#21CE2F. The grayscale version is
#A0A0A0. A 20% lighter version of the original color is
#FF64FF, and Hex
#AB009D is the 20% darker color. If the color is saturated by 10%, you get
#E426D5. If the color is desaturated by 10%, the color
#D83CCB is obtained.