The hex color #1d0b29 is a dark color. The web-safe version is Hex
#330033. A complementary color is
#E2F4D6. The grayscale version is
#1B1B1B. A 20% lighter version of the original color is
#503E5C, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#1D092A. If the color is desaturated by 10%, the color
#1D0D28 is obtained.