The hex color #da3f2c is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#25C0D3. The grayscale version is
#6C6C6C. A 20% lighter version of the original color is
#FF725F, and Hex
#A70C00 is the 20% darker color. If the color is saturated by 10%, you get
#E53A26. If the color is desaturated by 10%, the color
#CF4432 is obtained.