The hex color #d3871b is a light color. The web-safe version is Hex
#CC9933. A complementary color is
#2C78E4. The grayscale version is
#7C7C7C. A 20% lighter version of the original color is
#FFBA4E, and Hex
#A05400 is the 20% darker color. If the color is saturated by 10%, you get
#DC8811. If the color is desaturated by 10%, the color
#CA8625 is obtained.