The hex color #9F9F91 is a light color. The web-safe version is Hex
#999999. A complementary color is
#60606E. The grayscale version is
#9A9A9A. A 20% lighter version of the original color is
#D2D2C4, and Hex
#6C6C5E is the 20% darker color. If the color is saturated by 10%, you get
#9F9F90. If the color is desaturated by 10%, the color
#9F9F92 is obtained.