The hex color #d3f2ef is a light color. The web-safe version is Hex
#CCFFFF. A complementary color is
#2C0D10. The grayscale version is
#E7E7E7. A 20% lighter version of the original color is
#FFFFFF, and Hex
#A0BFBC is the 20% darker color. If the color is saturated by 10%, you get
#D1F3F0. If the color is desaturated by 10%, the color
#D5F1EE is obtained.