The hex color #3f3a2d is a dark color. The web-safe version is Hex
#333333. A complementary color is
#C0C5D2. The grayscale version is
#373737. A 20% lighter version of the original color is
#726D60, and Hex
#0C0700 is the 20% darker color. If the color is saturated by 10%, you get
#403A2C. If the color is desaturated by 10%, the color
#3E3A2E is obtained.