The hex color #a3b5b5 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#5C4A4A. The grayscale version is
#AFAFAF. A 20% lighter version of the original color is
#D6E8E8, and Hex
#708282 is the 20% darker color. If the color is saturated by 10%, you get
#A2B6B6. If the color is desaturated by 10%, the color
#A4B4B4 is obtained.