The hex color #3a3d3a is a dark color. The web-safe version is Hex
#333333. A complementary color is
#C5C2C5. The grayscale version is
#3B3B3B. A 20% lighter version of the original color is
#6D706D, and Hex
#070A07 is the 20% darker color. If the color is saturated by 10%, you get
#3A3D3A. If the color is desaturated by 10%, the color
#3A3D3A is obtained.