The hex color #140c09 is a dark color. The web-safe version is Hex
#000000. A complementary color is
#EBF3F6. The grayscale version is
#0E0E0E. A 20% lighter version of the original color is
#473F3C, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#150C09. If the color is desaturated by 10%, the color
#130C09 is obtained.