The hex color #d3f4dd is a light color. The web-safe version is Hex
#CCFFCC. A complementary color is
#2C0B22. The grayscale version is
#E1E1E1. A 20% lighter version of the original color is
#FFFFFF, and Hex
#A0C1AA is the 20% darker color. If the color is saturated by 10%, you get
#D2F6DD. If the color is desaturated by 10%, the color
#D4F2DD is obtained.