The hex color #858d6f is a light color. The web-safe version is Hex
#999966. A complementary color is
#7A7290. The grayscale version is
#808080. A 20% lighter version of the original color is
#B8C0A2, and Hex
#525A3C is the 20% darker color. If the color is saturated by 10%, you get
#858E6D. If the color is desaturated by 10%, the color
#858C71 is obtained.