The hex color #831b6c is a dark color. The web-safe version is Hex
#993366. A complementary color is
#7CE493. The grayscale version is
#595959. A 20% lighter version of the original color is
#B64E9F, and Hex
#500039 is the 20% darker color. If the color is saturated by 10%, you get
#87156E. If the color is desaturated by 10%, the color
#7F216A is obtained.