The hex color #873cb6 is a dark color. The web-safe version is Hex
#9933CC. A complementary color is
#78C349. The grayscale version is
#7E7E7E. A 20% lighter version of the original color is
#BA6FE9, and Hex
#540983 is the 20% darker color. If the color is saturated by 10%, you get
#8835BC. If the color is desaturated by 10%, the color
#8643B0 is obtained.