The hex color #a8199d is a dark color. The web-safe version is Hex
#990099. A complementary color is
#57E662. The grayscale version is
#757575. A 20% lighter version of the original color is
#DB4CD0, and Hex
#75006A is the 20% darker color. If the color is saturated by 10%, you get
#AD10A1. If the color is desaturated by 10%, the color
#A32299 is obtained.