The hex color #df3606 is a dark color. The web-safe version is Hex
#CC3300. A complementary color is
#20C9F9. The grayscale version is
#5E5E5E. A 20% lighter version of the original color is
#FF6939, and Hex
#AC0300 is the 20% darker color. If the color is saturated by 10%, you get
#EC3200. If the color is desaturated by 10%, the color
#D23A0F is obtained.