The hex color #b5424d is a dark color. The web-safe version is Hex
#CC3366. A complementary color is
#4ABDB2. The grayscale version is
#6C6C6C. A 20% lighter version of the original color is
#E87580, and Hex
#820F1A is the 20% darker color. If the color is saturated by 10%, you get
#BC3E4A. If the color is desaturated by 10%, the color
#AE4650 is obtained.