The hex color #DA333B is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#25CCC4. The grayscale version is
#6D6D6D. A 20% lighter version of the original color is
#FF666E, and Hex
#A70008 is the 20% darker color. If the color is saturated by 10%, you get
#E52D36. If the color is desaturated by 10%, the color
#CF3940 is obtained.