The hex color #a4499d is a dark color. The web-safe version is Hex
#993399. A complementary color is
#5BB662. The grayscale version is
#838383. A 20% lighter version of the original color is
#D77CD0, and Hex
#71166A is the 20% darker color. If the color is saturated by 10%, you get
#A743A0. If the color is desaturated by 10%, the color
#A14F9A is obtained.