The hex color #a55dd1 is a dark color. The web-safe version is Hex
#9966CC. A complementary color is
#5AA22E. The grayscale version is
#9C9C9C. A 20% lighter version of the original color is
#D890FF, and Hex
#722A9E is the 20% darker color. If the color is saturated by 10%, you get
#A657D6. If the color is desaturated by 10%, the color
#A463CC is obtained.