The hex color #f4555e is a light color. The web-safe version is Hex
#FF6666. A complementary color is
#0BAAA1. The grayscale version is
#8D8D8D. A 20% lighter version of the original color is
#FF8891, and Hex
#C1222B is the 20% darker color. If the color is saturated by 10%, you get
#FE4F59. If the color is desaturated by 10%, the color
#EA5B63 is obtained.