The hex color #a100e2 is a dark color. The web-safe version is Hex
#9900CC. A complementary color is
#5EFF1D. The grayscale version is
#818181. A 20% lighter version of the original color is
#D433FF, and Hex
#6E00AF is the 20% darker color. If the color is saturated by 10%, you get
#A400EC. If the color is desaturated by 10%, the color
#9E0DD8 is obtained.