The hex color #a91a6b is a dark color. The web-safe version is Hex
#993366. A complementary color is
#56E594. The grayscale version is
#656565. A 20% lighter version of the original color is
#DC4D9E, and Hex
#760038 is the 20% darker color. If the color is saturated by 10%, you get
#B0136C. If the color is desaturated by 10%, the color
#A2216A is obtained.