The hex color #a1b4a5 is a light color. The web-safe version is Hex
#99CC99. A complementary color is
#5E4B5A. The grayscale version is
#A9A9A9. A 20% lighter version of the original color is
#D4E7D8, and Hex
#6E8172 is the 20% darker color. If the color is saturated by 10%, you get
#A0B5A5. If the color is desaturated by 10%, the color
#A2B3A5 is obtained.