The hex color #839a6c is a light color. The web-safe version is Hex
#999966. A complementary color is
#7C6593. The grayscale version is
#838383. A 20% lighter version of the original color is
#B6CD9F, and Hex
#506739 is the 20% darker color. If the color is saturated by 10%, you get
#839C6A. If the color is desaturated by 10%, the color
#83986E is obtained.