The hex color #a4ed9e is a light color. The web-safe version is Hex
#99FF99. A complementary color is
#5B1261. The grayscale version is
#BABABA. A 20% lighter version of the original color is
#D7FFD1, and Hex
#71BA6B is the 20% darker color. If the color is saturated by 10%, you get
#A2F29B. If the color is desaturated by 10%, the color
#A6E8A1 is obtained.