The hex color #ac9f2b is a light color. The web-safe version is Hex
#999933. A complementary color is
#5360D4. The grayscale version is
#7D7D7D. A 20% lighter version of the original color is
#DFD25E, and Hex
#796C00 is the 20% darker color. If the color is saturated by 10%, you get
#B1A223. If the color is desaturated by 10%, the color
#A79C33 is obtained.