The hex color #a7b81a is a light color. The web-safe version is Hex
#99CC33. A complementary color is
#5847E5. The grayscale version is
#7E7E7E. A 20% lighter version of the original color is
#DAEB4D, and Hex
#748500 is the 20% darker color. If the color is saturated by 10%, you get
#ABBE10. If the color is desaturated by 10%, the color
#A3B224 is obtained.