The hex color #A831B5 is a dark color. The web-safe version is Hex
#9933CC. A complementary color is
#57CE4A. The grayscale version is
#858585. A 20% lighter version of the original color is
#DB64E8, and Hex
#750082 is the 20% darker color. If the color is saturated by 10%, you get
#AC29BA. If the color is desaturated by 10%, the color
#A439B0 is obtained.