The hex color #c9a23d is a light color. The web-safe version is Hex
#CC9933. A complementary color is
#365DC2. The grayscale version is
#8D8D8D. A 20% lighter version of the original color is
#FCD570, and Hex
#966F0A is the 20% darker color. If the color is saturated by 10%, you get
#CFA435. If the color is desaturated by 10%, the color
#C3A045 is obtained.