The hex color #010b10 is a dark color. The web-safe version is Hex
#000000. A complementary color is
#FEF4EF. The grayscale version is
#090909. A 20% lighter version of the original color is
#343E43, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#000B11. If the color is desaturated by 10%, the color
#020B0F is obtained.