The hex color #a3a1d3 is a light color. The web-safe version is Hex
#9999CC. A complementary color is
#5C5E2C. The grayscale version is
#B2B2B2. A 20% lighter version of the original color is
#D6D4FF, and Hex
#706EA0 is the 20% darker color. If the color is saturated by 10%, you get
#A19FD6. If the color is desaturated by 10%, the color
#A5A3D0 is obtained.