The hex color #6c556c is a dark color. The web-safe version is Hex
#666666. A complementary color is
#93AA93. The grayscale version is
#646464. A 20% lighter version of the original color is
#9F889F, and Hex
#392239 is the 20% darker color. If the color is saturated by 10%, you get
#6D536D. If the color is desaturated by 10%, the color
#6B576B is obtained.