The hex color #a3ccd0 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#5C332F. The grayscale version is
#C0C0C0. A 20% lighter version of the original color is
#D6FFFF, and Hex
#70999D is the 20% darker color. If the color is saturated by 10%, you get
#A0CDD2. If the color is desaturated by 10%, the color
#A6CBCE is obtained.