The hex color #66436c is a dark color. The web-safe version is Hex
#663366. A complementary color is
#99BC93. The grayscale version is
#5C5C5C. A 20% lighter version of the original color is
#99769F, and Hex
#331039 is the 20% darker color. If the color is saturated by 10%, you get
#67406E. If the color is desaturated by 10%, the color
#65466A is obtained.