The hex color #e66de1 is a light color. The web-safe version is Hex
#FF66CC. A complementary color is
#19921E. The grayscale version is
#BCBCBC. A 20% lighter version of the original color is
#FFA0FF, and Hex
#B33AAE is the 20% darker color. If the color is saturated by 10%, you get
#EA65E5. If the color is desaturated by 10%, the color
#E275DD is obtained.