The hex color #a90a75 is a dark color. The web-safe version is Hex
#990066. A complementary color is
#56F58A. The grayscale version is
#636363. A 20% lighter version of the original color is
#DC3DA8, and Hex
#760042 is the 20% darker color. If the color is saturated by 10%, you get
#B00177. If the color is desaturated by 10%, the color
#A21373 is obtained.