The hex color #99b17c is a light color. The web-safe version is Hex
#999966. A complementary color is
#664E83. The grayscale version is
#979797. A 20% lighter version of the original color is
#CCE4AF, and Hex
#667E49 is the 20% darker color. If the color is saturated by 10%, you get
#99B479. If the color is desaturated by 10%, the color
#99AE7F is obtained.