The hex color #ff320d is a dark color. The web-safe version is Hex
#FF3300. A complementary color is
#00CDF2. The grayscale version is
#6A6A6A. A 20% lighter version of the original color is
#FF6540, and Hex
#CC0000 is the 20% darker color. If the color is saturated by 10%, you get
#FF2C04. If the color is desaturated by 10%, the color
#F03816 is obtained.