The hex color #99f67d is a light color. The web-safe version is Hex
#99FF66. A complementary color is
#660982. The grayscale version is
#AFAFAF. A 20% lighter version of the original color is
#CCFFB0, and Hex
#66C34A is the 20% darker color. If the color is saturated by 10%, you get
#97FD78. If the color is desaturated by 10%, the color
#9BEF82 is obtained.