The hex color #9d300c is a dark color. The web-safe version is Hex
#993300. A complementary color is
#62CFF3. The grayscale version is
#484848. A 20% lighter version of the original color is
#D0633F, and Hex
#6A0000 is the 20% darker color. If the color is saturated by 10%, you get
#A52E06. If the color is desaturated by 10%, the color
#953212 is obtained.