The hex color #b54ef0 is a dark color. The web-safe version is Hex
#CC66FF. A complementary color is
#4AB10F. The grayscale version is
#A6A6A6. A 20% lighter version of the original color is
#E881FF, and Hex
#821BBD is the 20% darker color. If the color is saturated by 10%, you get
#B645F7. If the color is desaturated by 10%, the color
#B457E9 is obtained.