The hex color #c83c2a is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#37C3D5. The grayscale version is
#656565. A 20% lighter version of the original color is
#FB6F5D, and Hex
#950900 is the 20% darker color. If the color is saturated by 10%, you get
#D23824. If the color is desaturated by 10%, the color
#BE4030 is obtained.