The hex color #d90ff3 is a dark color. The web-safe version is Hex
#CC00FF. A complementary color is
#26F00C. The grayscale version is
#9E9E9E. A 20% lighter version of the original color is
#FF42FF, and Hex
#A600C0 is the 20% darker color. If the color is saturated by 10%, you get
#DF01FB. If the color is desaturated by 10%, the color
#D31DEB is obtained.