The hex color #dfdef2 is a light color. The web-safe version is Hex
#CCCCFF. A complementary color is
#20210D. The grayscale version is
#E5E5E5. A 20% lighter version of the original color is
#FFFFFF, and Hex
#ACABBF is the 20% darker color. If the color is saturated by 10%, you get
#DEDDF3. If the color is desaturated by 10%, the color
#E0DFF1 is obtained.