The hex color #a66db9 is a light color. The web-safe version is Hex
#9966CC. A complementary color is
#599246. The grayscale version is
#999999. A 20% lighter version of the original color is
#D9A0EC, and Hex
#733A86 is the 20% darker color. If the color is saturated by 10%, you get
#A769BC. If the color is desaturated by 10%, the color
#A571B6 is obtained.