The hex color #3d4b28 is a dark color. The web-safe version is Hex
#333333. A complementary color is
#C2B4D7. The grayscale version is
#3B3B3B. A 20% lighter version of the original color is
#707E5B, and Hex
#0A1800 is the 20% darker color. If the color is saturated by 10%, you get
#3D4D26. If the color is desaturated by 10%, the color
#3D492A is obtained.