The hex color #c23e4d is a dark color. The web-safe version is Hex
#CC3366. A complementary color is
#3DC1B2. The grayscale version is
#6F6F6F. A 20% lighter version of the original color is
#F57180, and Hex
#8F0B1A is the 20% darker color. If the color is saturated by 10%, you get
#CA394A. If the color is desaturated by 10%, the color
#BA4350 is obtained.