The hex color #f33d3b is a dark color. The web-safe version is Hex
#FF3333. A complementary color is
#0CC2C4. The grayscale version is
#797979. A 20% lighter version of the original color is
#FF706E, and Hex
#C00A08 is the 20% darker color. If the color is saturated by 10%, you get
#FF3735. If the color is desaturated by 10%, the color
#E74341 is obtained.