The hex color #a40f55 is a dark color. The web-safe version is Hex
#990066. A complementary color is
#5BF0AA. The grayscale version is
#585858. A 20% lighter version of the original color is
#D74288, and Hex
#710022 is the 20% darker color. If the color is saturated by 10%, you get
#AC0855. If the color is desaturated by 10%, the color
#9C1655 is obtained.