The hex color #6c4b4b is a dark color. The web-safe version is Hex
#663333. A complementary color is
#93B4B4. The grayscale version is
#565656. A 20% lighter version of the original color is
#9F7E7E, and Hex
#391818 is the 20% darker color. If the color is saturated by 10%, you get
#6E4A4A. If the color is desaturated by 10%, the color
#6A4C4C is obtained.