The hex color #544e8c is a dark color. The web-safe version is Hex
#666699. A complementary color is
#ABB173. The grayscale version is
#656565. A 20% lighter version of the original color is
#8781BF, and Hex
#211B59 is the 20% darker color. If the color is saturated by 10%, you get
#524C90. If the color is desaturated by 10%, the color
#565088 is obtained.