The hex color #b521e9 is a dark color. The web-safe version is Hex
#CC33FF. A complementary color is
#4ADE16. The grayscale version is
#959595. A 20% lighter version of the original color is
#E854FF, and Hex
#8200B6 is the 20% darker color. If the color is saturated by 10%, you get
#B815F1. If the color is desaturated by 10%, the color
#B22DE1 is obtained.