The hex color #A9C736 is a light color. The web-safe version is Hex
#99CC33. A complementary color is
#5638C9. The grayscale version is
#8D8D8D. A 20% lighter version of the original color is
#DCFA69, and Hex
#769403 is the 20% darker color. If the color is saturated by 10%, you get
#ACCD2D. If the color is desaturated by 10%, the color
#A6C13F is obtained.