The hex color #a81b9d is a dark color. The web-safe version is Hex
#993399. A complementary color is
#57E462. The grayscale version is
#757575. A 20% lighter version of the original color is
#DB4ED0, and Hex
#75006A is the 20% darker color. If the color is saturated by 10%, you get
#AD12A1. If the color is desaturated by 10%, the color
#A32499 is obtained.