The hex color #a66e2e is a dark color. The web-safe version is Hex
#996633. A complementary color is
#5991D1. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#D9A161, and Hex
#733B00 is the 20% darker color. If the color is saturated by 10%, you get
#AC6E28. If the color is desaturated by 10%, the color
#A06E34 is obtained.