The hex color #a9f3e7 is a light color. The web-safe version is Hex
#99FFFF. A complementary color is
#560C18. The grayscale version is
#D6D6D6. A 20% lighter version of the original color is
#DCFFFF, and Hex
#76C0B4 is the 20% darker color. If the color is saturated by 10%, you get
#A4F6E9. If the color is desaturated by 10%, the color
#AEF0E5 is obtained.