The hex color #a21cfa is a dark color. The web-safe version is Hex
#9933FF. A complementary color is
#5DE305. The grayscale version is
#939393. A 20% lighter version of the original color is
#D54FFF, and Hex
#6F00C7 is the 20% darker color. If the color is saturated by 10%, you get
#A410FF. If the color is desaturated by 10%, the color
#A028F0 is obtained.