The hex color #a579cd is a light color. The web-safe version is Hex
#9966CC. A complementary color is
#5A8632. The grayscale version is
#A4A4A4. A 20% lighter version of the original color is
#D8ACFF, and Hex
#72469A is the 20% darker color. If the color is saturated by 10%, you get
#A575D1. If the color is desaturated by 10%, the color
#A57DC9 is obtained.