The hex color #5a996c is a light color. The web-safe version is Hex
#669966. A complementary color is
#A56693. The grayscale version is
#757575. A 20% lighter version of the original color is
#8DCC9F, and Hex
#276639 is the 20% darker color. If the color is saturated by 10%, you get
#579D6B. If the color is desaturated by 10%, the color
#5D956D is obtained.