The hex color #a66ba5 is a light color. The web-safe version is Hex
#996699. A complementary color is
#59945A. The grayscale version is
#929292. A 20% lighter version of the original color is
#D99ED8, and Hex
#733872 is the 20% darker color. If the color is saturated by 10%, you get
#A867A7. If the color is desaturated by 10%, the color
#A46FA3 is obtained.