The hex color #fc432c is a dark color. The web-safe version is Hex
#FF3333. A complementary color is
#03BCD3. The grayscale version is
#797979. A 20% lighter version of the original color is
#FF765F, and Hex
#C91000 is the 20% darker color. If the color is saturated by 10%, you get
#FF3E24. If the color is desaturated by 10%, the color
#EF4834 is obtained.