The hex color #a9b04d is a light color. The web-safe version is Hex
#999966. A complementary color is
#564FB2. The grayscale version is
#8D8D8D. A 20% lighter version of the original color is
#DCE380, and Hex
#767D1A is the 20% darker color. If the color is saturated by 10%, you get
#ACB447. If the color is desaturated by 10%, the color
#A6AC53 is obtained.