The hex color #a4b789 is a light color. The web-safe version is Hex
#99CC99. A complementary color is
#5B4876. The grayscale version is
#A1A1A1. A 20% lighter version of the original color is
#D7EABC, and Hex
#718456 is the 20% darker color. If the color is saturated by 10%, you get
#A4B987. If the color is desaturated by 10%, the color
#A4B58B is obtained.