The hex color #c63f29 is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#39C0D6. The grayscale version is
#656565. A 20% lighter version of the original color is
#F9725C, and Hex
#930C00 is the 20% darker color. If the color is saturated by 10%, you get
#D03B23. If the color is desaturated by 10%, the color
#BC432F is obtained.