The hex color #a8135f is a dark color. The web-safe version is Hex
#990066. A complementary color is
#57ECA0. The grayscale version is
#5E5E5E. A 20% lighter version of the original color is
#DB4692, and Hex
#75002C is the 20% darker color. If the color is saturated by 10%, you get
#AF0C5F. If the color is desaturated by 10%, the color
#A11B5F is obtained.