The hex color #d9f3f0 is a light color. The web-safe version is Hex
#CCFFFF. A complementary color is
#260C0F. The grayscale version is
#E9E9E9. A 20% lighter version of the original color is
#FFFFFF, and Hex
#A6C0BD is the 20% darker color. If the color is saturated by 10%, you get
#D7F4F1. If the color is desaturated by 10%, the color
#DBF2EF is obtained.