The hex color #99e87d is a light color. The web-safe version is Hex
#99FF66. A complementary color is
#661782. The grayscale version is
#AAAAAA. A 20% lighter version of the original color is
#CCFFB0, and Hex
#66B54A is the 20% darker color. If the color is saturated by 10%, you get
#97EE79. If the color is desaturated by 10%, the color
#9BE282 is obtained.