The hex color #2d312d is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D2CED2. The grayscale version is
#2E2E2E. A 20% lighter version of the original color is
#606460, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#2D312D. If the color is desaturated by 10%, the color
#2D312D is obtained.