The hex color #723f70 is a dark color. The web-safe version is Hex
#663366. A complementary color is
#8DC08F. The grayscale version is
#606060. A 20% lighter version of the original color is
#A572A3, and Hex
#3F0C3D is the 20% darker color. If the color is saturated by 10%, you get
#743C72. If the color is desaturated by 10%, the color
#70426E is obtained.