The hex color #a31c5e is a dark color. The web-safe version is Hex
#993366. A complementary color is
#5CE3A1. The grayscale version is
#5F5F5F. A 20% lighter version of the original color is
#D64F91, and Hex
#70002B is the 20% darker color. If the color is saturated by 10%, you get
#AA155E. If the color is desaturated by 10%, the color
#9C235E is obtained.