The hex color #00011d is a dark color. The web-safe version is Hex
#000033. A complementary color is
#FFFEE2. The grayscale version is
#0A0A0A. A 20% lighter version of the original color is
#333450, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#00001F. If the color is desaturated by 10%, the color
#01021B is obtained.