The hex color #f55b4e is a light color. The web-safe version is Hex
#FF6666. A complementary color is
#0AA4B1. The grayscale version is
#8A8A8A. A 20% lighter version of the original color is
#FF8E81, and Hex
#C2281B is the 20% darker color. If the color is saturated by 10%, you get
#FF5648. If the color is desaturated by 10%, the color
#EA6054 is obtained.