The hex color #c666e1 is a light color. The web-safe version is Hex
#CC66CC. A complementary color is
#39991E. The grayscale version is
#AFAFAF. A 20% lighter version of the original color is
#F999FF, and Hex
#9333AE is the 20% darker color. If the color is saturated by 10%, you get
#C85FE6. If the color is desaturated by 10%, the color
#C46DDC is obtained.