The hex color #2d1d1d is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D2E2E2. The grayscale version is
#222222. A 20% lighter version of the original color is
#605050, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#2E1C1C. If the color is desaturated by 10%, the color
#2C1E1E is obtained.