The hex color #000b13 is a dark color. The web-safe version is Hex
#000000. A complementary color is
#FFF4EC. The grayscale version is
#0A0A0A. A 20% lighter version of the original color is
#333E46, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#000B14. If the color is desaturated by 10%, the color
#010B12 is obtained.