The hex color #a3d7c3 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#5C283C. The grayscale version is
#BFBFBF. A 20% lighter version of the original color is
#D6FFF6, and Hex
#70A490 is the 20% darker color. If the color is saturated by 10%, you get
#A0D9C3. If the color is desaturated by 10%, the color
#A6D5C3 is obtained.