The hex color #a3b1d0 is a light color. The web-safe version is Hex
#9999CC. A complementary color is
#5C4E2F. The grayscale version is
#B7B7B7. A 20% lighter version of the original color is
#D6E4FF, and Hex
#707E9D is the 20% darker color. If the color is saturated by 10%, you get
#A1B0D3. If the color is desaturated by 10%, the color
#A5B2CD is obtained.