The hex color #a866e7 is a light color. The web-safe version is Hex
#9966FF. A complementary color is
#579918. The grayscale version is
#A7A7A7. A 20% lighter version of the original color is
#DB99FF, and Hex
#7533B4 is the 20% darker color. If the color is saturated by 10%, you get
#A860ED. If the color is desaturated by 10%, the color
#A86DE1 is obtained.