The hex color #a31da0 is a dark color. The web-safe version is Hex
#993399. A complementary color is
#5CE25F. The grayscale version is
#757575. A 20% lighter version of the original color is
#D650D3, and Hex
#70006D is the 20% darker color. If the color is saturated by 10%, you get
#A814A4. If the color is desaturated by 10%, the color
#9E269C is obtained.