The hex color #ef3dbc is a light color. The web-safe version is Hex
#FF33CC. A complementary color is
#10C243. The grayscale version is
#A3A3A3. A 20% lighter version of the original color is
#FF70EF, and Hex
#BC0A89 is the 20% darker color. If the color is saturated by 10%, you get
#F733BF. If the color is desaturated by 10%, the color
#E747B9 is obtained.