The hex color #a9c7b8 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#563847. The grayscale version is
#B8B8B8. A 20% lighter version of the original color is
#DCFAEB, and Hex
#769485 is the 20% darker color. If the color is saturated by 10%, you get
#A8C9B8. If the color is desaturated by 10%, the color
#ABC6B8 is obtained.