The hex color #978e77 is a light color. The web-safe version is Hex
#999966. A complementary color is
#687188. The grayscale version is
#898989. A 20% lighter version of the original color is
#CAC1AA, and Hex
#645B44 is the 20% darker color. If the color is saturated by 10%, you get
#988E75. If the color is desaturated by 10%, the color
#968E79 is obtained.