The hex color #df4b4b is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#20B4B4. The grayscale version is
#7C7C7C. A 20% lighter version of the original color is
#FF7E7E, and Hex
#AC1818 is the 20% darker color. If the color is saturated by 10%, you get
#E94646. If the color is desaturated by 10%, the color
#D55050 is obtained.