The hex color #a66b4b is a dark color. The web-safe version is Hex
#996633. A complementary color is
#5994B4. The grayscale version is
#747474. A 20% lighter version of the original color is
#D99E7E, and Hex
#733818 is the 20% darker color. If the color is saturated by 10%, you get
#AB6A47. If the color is desaturated by 10%, the color
#A16C4F is obtained.