The hex color #b378ef is a light color. The web-safe version is Hex
#CC66FF. A complementary color is
#4C8710. The grayscale version is
#B3B3B3. A 20% lighter version of the original color is
#E6ABFF, and Hex
#8045BC is the 20% darker color. If the color is saturated by 10%, you get
#B372F5. If the color is desaturated by 10%, the color
#B37EE9 is obtained.