The hex color #0f423c is a dark color. The web-safe version is Hex
#003333. A complementary color is
#F0BDC3. The grayscale version is
#2F2F2F. A 20% lighter version of the original color is
#42756F, and Hex
#000F09 is the 20% darker color. If the color is saturated by 10%, you get
#0C443D. If the color is desaturated by 10%, the color
#12403B is obtained.