The hex color #c8222f is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#37DDD0. The grayscale version is
#5E5E5E. A 20% lighter version of the original color is
#FB5562, and Hex
#950000 is the 20% darker color. If the color is saturated by 10%, you get
#D31C2A. If the color is desaturated by 10%, the color
#BD2834 is obtained.