The hex color #c5550b is a dark color. The web-safe version is Hex
#CC6600. A complementary color is
#3AAAF4. The grayscale version is
#626262. A 20% lighter version of the original color is
#F8883E, and Hex
#922200 is the 20% darker color. If the color is saturated by 10%, you get
#CF5402. If the color is desaturated by 10%, the color
#BB5614 is obtained.