The hex color #f73b2e is a dark color. The web-safe version is Hex
#FF3333. A complementary color is
#08C4D1. The grayscale version is
#757575. A 20% lighter version of the original color is
#FF6E61, and Hex
#C40800 is the 20% darker color. If the color is saturated by 10%, you get
#FF3527. If the color is desaturated by 10%, the color
#EA4135 is obtained.