The hex color #ec4f3e is a dark color. The web-safe version is Hex
#FF6633. A complementary color is
#13B0C1. The grayscale version is
#7E7E7E. A 20% lighter version of the original color is
#FF8271, and Hex
#B91C0B is the 20% darker color. If the color is saturated by 10%, you get
#F74A38. If the color is desaturated by 10%, the color
#E15444 is obtained.