The hex color #a9a42a is a light color. The web-safe version is Hex
#999933. A complementary color is
#565BD5. The grayscale version is
#7D7D7D. A 20% lighter version of the original color is
#DCD75D, and Hex
#767100 is the 20% darker color. If the color is saturated by 10%, you get
#ADA822. If the color is desaturated by 10%, the color
#A5A032 is obtained.