The hex color #a91ea2 is a dark color. The web-safe version is Hex
#993399. A complementary color is
#56E15D. The grayscale version is
#787878. A 20% lighter version of the original color is
#DC51D5, and Hex
#76006F is the 20% darker color. If the color is saturated by 10%, you get
#AE15A6. If the color is desaturated by 10%, the color
#A4279E is obtained.