The hex color #d9f2f3 is a light color. The web-safe version is Hex
#CCFFFF. A complementary color is
#260D0C. The grayscale version is
#EAEAEA. A 20% lighter version of the original color is
#FFFFFF, and Hex
#A6BFC0 is the 20% darker color. If the color is saturated by 10%, you get
#D7F3F4. If the color is desaturated by 10%, the color
#DBF1F2 is obtained.