The hex color #df0e3e is a dark color. The web-safe version is Hex
#CC0033. A complementary color is
#20F1C1. The grayscale version is
#646464. A 20% lighter version of the original color is
#FF4171, and Hex
#AC000B is the 20% darker color. If the color is saturated by 10%, you get
#EB053A. If the color is desaturated by 10%, the color
#D31742 is obtained.