The hex color #a3f4d8 is a light color. The web-safe version is Hex
#99FFCC. A complementary color is
#5C0B27. The grayscale version is
#D0D0D0. A 20% lighter version of the original color is
#D6FFFF, and Hex
#70C1A5 is the 20% darker color. If the color is saturated by 10%, you get
#9FF8D9. If the color is desaturated by 10%, the color
#A7F0D7 is obtained.