The hex color #df0107 is a dark color. The web-safe version is Hex
#CC0000. A complementary color is
#20FEF8. The grayscale version is
#4D4D4D. A 20% lighter version of the original color is
#FF343A, and Hex
#AC0000 is the 20% darker color. If the color is saturated by 10%, you get
#EE0000. If the color is desaturated by 10%, the color
#D0090E is obtained.