The hex color #a90b8d is a dark color. The web-safe version is Hex
#990099. A complementary color is
#56F472. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#DC3EC0, and Hex
#76005A is the 20% darker color. If the color is saturated by 10%, you get
#AF0190. If the color is desaturated by 10%, the color
#A3158A is obtained.