The hex color #8c99a9 is a light color. The web-safe version is Hex
#999999. A complementary color is
#736656. The grayscale version is
#9A9A9A. A 20% lighter version of the original color is
#BFCCDC, and Hex
#596676 is the 20% darker color. If the color is saturated by 10%, you get
#8B99AB. If the color is desaturated by 10%, the color
#8D99A8 is obtained.