The hex color #c31a9f is a dark color. The web-safe version is Hex
#CC3399. A complementary color is
#3CE560. The grayscale version is
#7F7F7F. A 20% lighter version of the original color is
#F64DD2, and Hex
#90006C is the 20% darker color. If the color is saturated by 10%, you get
#CA10A2. If the color is desaturated by 10%, the color
#BC249C is obtained.