The hex color #a64dc7 is a dark color. The web-safe version is Hex
#9966CC. A complementary color is
#59B238. The grayscale version is
#939393. A 20% lighter version of the original color is
#D980FA, and Hex
#731A94 is the 20% darker color. If the color is saturated by 10%, you get
#A846CC. If the color is desaturated by 10%, the color
#A454C2 is obtained.