The hex color #543f6e is a dark color. The web-safe version is Hex
#663366. A complementary color is
#ABC091. The grayscale version is
#565656. A 20% lighter version of the original color is
#8772A1, and Hex
#210C3B is the 20% darker color. If the color is saturated by 10%, you get
#543D70. If the color is desaturated by 10%, the color
#54416C is obtained.