The hex color #ce173f is a dark color. The web-safe version is Hex
#CC0033. A complementary color is
#31E8C0. The grayscale version is
#616161. A 20% lighter version of the original color is
#FF4A72, and Hex
#9B000C is the 20% darker color. If the color is saturated by 10%, you get
#D9103C. If the color is desaturated by 10%, the color
#C31E42 is obtained.