The hex color #a851fa is a dark color. The web-safe version is Hex
#9966FF. A complementary color is
#57AE05. The grayscale version is
#A6A6A6. A 20% lighter version of the original color is
#DB84FF, and Hex
#751EC7 is the 20% darker color. If the color is saturated by 10%, you get
#A848FF. If the color is desaturated by 10%, the color
#A85AF2 is obtained.