The hex color #dd9ef1 is a light color. The web-safe version is Hex
#CC99FF. A complementary color is
#22610E. The grayscale version is
#CFCFCF. A 20% lighter version of the original color is
#FFD1FF, and Hex
#AA6BBE is the 20% darker color. If the color is saturated by 10%, you get
#DE99F4. If the color is desaturated by 10%, the color
#DCA3EE is obtained.