The hex color #df4002 is a dark color. The web-safe version is Hex
#CC3300. A complementary color is
#20BFFD. The grayscale version is
#606060. A 20% lighter version of the original color is
#FF7335, and Hex
#AC0D00 is the 20% darker color. If the color is saturated by 10%, you get
#EC3D00. If the color is desaturated by 10%, the color
#D2430B is obtained.