The hex color #8c99a3 is a light color. The web-safe version is Hex
#999999. A complementary color is
#73665C. The grayscale version is
#989898. A 20% lighter version of the original color is
#BFCCD6, and Hex
#596670 is the 20% darker color. If the color is saturated by 10%, you get
#8B99A4. If the color is desaturated by 10%, the color
#8D99A2 is obtained.