The hex color #1d1b1d is a dark color. The web-safe version is Hex
#333333. A complementary color is
#E2E4E2. The grayscale version is
#1C1C1C. A 20% lighter version of the original color is
#504E50, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#1D1B1D. If the color is desaturated by 10%, the color
#1D1B1D is obtained.