The hex color #2d3c31 is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D2C3CE. The grayscale version is
#333333. A 20% lighter version of the original color is
#606F64, and Hex
#000900 is the 20% darker color. If the color is saturated by 10%, you get
#2C3D31. If the color is desaturated by 10%, the color
#2E3B31 is obtained.