The hex color #a3f6e4 is a light color. The web-safe version is Hex
#99FFCC. A complementary color is
#5C091B. The grayscale version is
#D4D4D4. A 20% lighter version of the original color is
#D6FFFF, and Hex
#70C3B1 is the 20% darker color. If the color is saturated by 10%, you get
#9EF9E6. If the color is desaturated by 10%, the color
#A8F3E2 is obtained.