The hex color #3b3e3d is a dark color. The web-safe version is Hex
#333333. A complementary color is
#C4C1C2. The grayscale version is
#3D3D3D. A 20% lighter version of the original color is
#6E7170, and Hex
#080B0A is the 20% darker color. If the color is saturated by 10%, you get
#3B3E3D. If the color is desaturated by 10%, the color
#3B3E3D is obtained.