The hex color #a788f1 is a light color. The web-safe version is Hex
#9999FF. A complementary color is
#58770E. The grayscale version is
#B5B5B5. A 20% lighter version of the original color is
#DABBFF, and Hex
#7455BE is the 20% darker color. If the color is saturated by 10%, you get
#A683F7. If the color is desaturated by 10%, the color
#A88DEB is obtained.