The hex color #a813f3 is a dark color. The web-safe version is Hex
#9900FF. A complementary color is
#57EC0C. The grayscale version is
#8F8F8F. A 20% lighter version of the original color is
#DB46FF, and Hex
#7500C0 is the 20% darker color. If the color is saturated by 10%, you get
#AA07FD. If the color is desaturated by 10%, the color
#A61FE9 is obtained.