The hex color #a558cc is a dark color. The web-safe version is Hex
#9966CC. A complementary color is
#5AA733. The grayscale version is
#989898. A 20% lighter version of the original color is
#D88BFF, and Hex
#722599 is the 20% darker color. If the color is saturated by 10%, you get
#A652D1. If the color is desaturated by 10%, the color
#A45EC7 is obtained.