The hex color #dcdee9 is a light color. The web-safe version is Hex
#CCCCFF. A complementary color is
#232116. The grayscale version is
#E1E1E1. A 20% lighter version of the original color is
#FFFFFF, and Hex
#A9ABB6 is the 20% darker color. If the color is saturated by 10%, you get
#DCDEEA. If the color is desaturated by 10%, the color
#DDDEE8 is obtained.