The hex color #3f3f3e is a dark color. The web-safe version is Hex
#333333. A complementary color is
#C0C0C1. The grayscale version is
#3F3F3F. A 20% lighter version of the original color is
#727271, and Hex
#0C0C0B is the 20% darker color. If the color is saturated by 10%, you get
#3F3F3E. If the color is desaturated by 10%, the color
#3F3F3E is obtained.