The hex color #e4433b is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#1BBCC4. The grayscale version is
#767676. A 20% lighter version of the original color is
#FF766E, and Hex
#B11008 is the 20% darker color. If the color is saturated by 10%, you get
#EF3E35. If the color is desaturated by 10%, the color
#D94841 is obtained.