The hex color #d66a01 is a dark color. The web-safe version is Hex
#CC6600. A complementary color is
#2995FE. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#FF9D34, and Hex
#A33700 is the 20% darker color. If the color is saturated by 10%, you get
#E16A00. If the color is desaturated by 10%, the color
#CB6A0C is obtained.