The hex color #a9ddc8 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#562237. The grayscale version is
#C5C5C5. A 20% lighter version of the original color is
#DCFFFB, and Hex
#76AA95 is the 20% darker color. If the color is saturated by 10%, you get
#A6DFC8. If the color is desaturated by 10%, the color
#ACDBC8 is obtained.