The hex color #fd393f is a dark color. The web-safe version is Hex
#FF3333. A complementary color is
#02C6C0. The grayscale version is
#7C7C7C. A 20% lighter version of the original color is
#FF6C72, and Hex
#CA060C is the 20% darker color. If the color is saturated by 10%, you get
#FF3239. If the color is desaturated by 10%, the color
#F04045 is obtained.