The hex color #8e78e9 is a light color. The web-safe version is Hex
#9966FF. A complementary color is
#718716. The grayscale version is
#A5A5A5. A 20% lighter version of the original color is
#C1ABFF, and Hex
#5B45B6 is the 20% darker color. If the color is saturated by 10%, you get
#8C74F0. If the color is desaturated by 10%, the color
#907DE2 is obtained.