The hex color #a90fb2 is a dark color. The web-safe version is Hex
#990099. A complementary color is
#56F04D. The grayscale version is
#797979. A 20% lighter version of the original color is
#DC42E5, and Hex
#76007F is the 20% darker color. If the color is saturated by 10%, you get
#AE04B8. If the color is desaturated by 10%, the color
#A41AAC is obtained.