The hex color #a3b0d0 is a light color. The web-safe version is Hex
#9999CC. A complementary color is
#5C4F2F. The grayscale version is
#B6B6B6. A 20% lighter version of the original color is
#D6E3FF, and Hex
#707D9D is the 20% darker color. If the color is saturated by 10%, you get
#A1AFD3. If the color is desaturated by 10%, the color
#A5B1CD is obtained.