The hex color #e43b4e is a dark color. The web-safe version is Hex
#CC3366. A complementary color is
#1BC4B1. The grayscale version is
#7A7A7A. A 20% lighter version of the original color is
#FF6E81, and Hex
#B1081B is the 20% darker color. If the color is saturated by 10%, you get
#EF354A. If the color is desaturated by 10%, the color
#D94152 is obtained.