The hex color #73187f is a dark color. The web-safe version is Hex
#660066. A complementary color is
#8CE780. The grayscale version is
#595959. A 20% lighter version of the original color is
#A64BB2, and Hex
#40004C is the 20% darker color. If the color is saturated by 10%, you get
#761283. If the color is desaturated by 10%, the color
#701E7B is obtained.