The hex color #e44e3d is a dark color. The web-safe version is Hex
#CC6633. A complementary color is
#1BB1C2. The grayscale version is
#7A7A7A. A 20% lighter version of the original color is
#FF8170, and Hex
#B11B0A is the 20% darker color. If the color is saturated by 10%, you get
#EF4A37. If the color is desaturated by 10%, the color
#D95243 is obtained.