The hex color #f3972e is a light color. The web-safe version is Hex
#FF9933. A complementary color is
#0C68D1. The grayscale version is
#939393. A 20% lighter version of the original color is
#FFCA61, and Hex
#C06400 is the 20% darker color. If the color is saturated by 10%, you get
#FD9724. If the color is desaturated by 10%, the color
#E99738 is obtained.