The hex color #de1ff1 is a dark color. The web-safe version is Hex
#CC33FF. A complementary color is
#21E00E. The grayscale version is
#A5A5A5. A 20% lighter version of the original color is
#FF52FF, and Hex
#AB00BE is the 20% darker color. If the color is saturated by 10%, you get
#E412F9. If the color is desaturated by 10%, the color
#D82CE9 is obtained.