The hex color #6f403c is a dark color. The web-safe version is Hex
#663333. A complementary color is
#90BFC3. The grayscale version is
#4E4E4E. A 20% lighter version of the original color is
#A2736F, and Hex
#3C0D09 is the 20% darker color. If the color is saturated by 10%, you get
#723F3A. If the color is desaturated by 10%, the color
#6C413E is obtained.