The hex color #a9f86a is a light color. The web-safe version is Hex
#99FF66. A complementary color is
#560795. The grayscale version is
#AEAEAE. A 20% lighter version of the original color is
#DCFF9D, and Hex
#76C537 is the 20% darker color. If the color is saturated by 10%, you get
#A8FF63. If the color is desaturated by 10%, the color
#AAF171 is obtained.