The hex color #f33d1b is a dark color. The web-safe version is Hex
#FF3333. A complementary color is
#0CC2E4. The grayscale version is
#6E6E6E. A 20% lighter version of the original color is
#FF704E, and Hex
#C00A00 is the 20% darker color. If the color is saturated by 10%, you get
#FF3813. If the color is desaturated by 10%, the color
#E64223 is obtained.