The hex color #c42a57 is a dark color. The web-safe version is Hex
#CC3366. A complementary color is
#3BD5A8. The grayscale version is
#6C6C6C. A 20% lighter version of the original color is
#F75D8A, and Hex
#910024 is the 20% darker color. If the color is saturated by 10%, you get
#CD2355. If the color is desaturated by 10%, the color
#BB3159 is obtained.