The hex color #b74dfb is a light color. The web-safe version is Hex
#CC66FF. A complementary color is
#48B204. The grayscale version is
#AAAAAA. A 20% lighter version of the original color is
#EA80FF, and Hex
#841AC8 is the 20% darker color. If the color is saturated by 10%, you get
#B844FF. If the color is desaturated by 10%, the color
#B656F3 is obtained.