The hex color #8e73a5 is a light color. The web-safe version is Hex
#996699. A complementary color is
#718C5A. The grayscale version is
#8D8D8D. A 20% lighter version of the original color is
#C1A6D8, and Hex
#5B4072 is the 20% darker color. If the color is saturated by 10%, you get
#8E70A7. If the color is desaturated by 10%, the color
#8E76A3 is obtained.