The hex color #d3e1e4 is a light color. The web-safe version is Hex
#CCCCCC. A complementary color is
#2C1E1B. The grayscale version is
#DDDDDD. A 20% lighter version of the original color is
#FFFFFF, and Hex
#A0AEB1 is the 20% darker color. If the color is saturated by 10%, you get
#D2E1E5. If the color is desaturated by 10%, the color
#D4E1E3 is obtained.