The hex color #c63f36 is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#39C0C9. The grayscale version is
#696969. A 20% lighter version of the original color is
#F97269, and Hex
#930C03 is the 20% darker color. If the color is saturated by 10%, you get
#CF3B31. If the color is desaturated by 10%, the color
#BD433B is obtained.