The hex color #7c99a7 is a light color. The web-safe version is Hex
#669999. A complementary color is
#836658. The grayscale version is
#949494. A 20% lighter version of the original color is
#AFCCDA, and Hex
#496674 is the 20% darker color. If the color is saturated by 10%, you get
#7A9AA9. If the color is desaturated by 10%, the color
#7E99A5 is obtained.