The hex color #a3b8c5 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#5C473A. The grayscale version is
#B5B5B5. A 20% lighter version of the original color is
#D6EBF8, and Hex
#708592 is the 20% darker color. If the color is saturated by 10%, you get
#A1B8C7. If the color is desaturated by 10%, the color
#A5B8C3 is obtained.