The hex color #c99f77 is a light color. The web-safe version is Hex
#CC9966. A complementary color is
#366088. The grayscale version is
#A0A0A0. A 20% lighter version of the original color is
#FCD2AA, and Hex
#966C44 is the 20% darker color. If the color is saturated by 10%, you get
#CD9F73. If the color is desaturated by 10%, the color
#C59F7B is obtained.