The hex color #00013f is a dark color. The web-safe version is Hex
#000033. A complementary color is
#FFFEC0. The grayscale version is
#151515. A 20% lighter version of the original color is
#333472, and Hex
#00000C is the 20% darker color. If the color is saturated by 10%, you get
#000043. If the color is desaturated by 10%, the color
#02033B is obtained.