The hex color #a66af7 is a light color. The web-safe version is Hex
#9966FF. A complementary color is
#599508. The grayscale version is
#ADADAD. A 20% lighter version of the original color is
#D99DFF, and Hex
#7337C4 is the 20% darker color. If the color is saturated by 10%, you get
#A563FE. If the color is desaturated by 10%, the color
#A771F0 is obtained.