The hex color #99a75f is a light color. The web-safe version is Hex
#999966. A complementary color is
#6658A0. The grayscale version is
#8A8A8A. A 20% lighter version of the original color is
#CCDA92, and Hex
#66742C is the 20% darker color. If the color is saturated by 10%, you get
#9AAA5B. If the color is desaturated by 10%, the color
#98A463 is obtained.