The hex color #ca363c is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#35C9C3. The grayscale version is
#696969. A 20% lighter version of the original color is
#FD696F, and Hex
#970309 is the 20% darker color. If the color is saturated by 10%, you get
#D43137. If the color is desaturated by 10%, the color
#C03B41 is obtained.