The hex color #878ddc is a light color. The web-safe version is Hex
#9999CC. A complementary color is
#787223. The grayscale version is
#A5A5A5. A 20% lighter version of the original color is
#BAC0FF, and Hex
#545AA9 is the 20% darker color. If the color is saturated by 10%, you get
#848BE1. If the color is desaturated by 10%, the color
#8A8FD7 is obtained.