The hex color #40a96b is a light color. The web-safe version is Hex
#339966. A complementary color is
#BF5694. The grayscale version is
#717171. A 20% lighter version of the original color is
#73DC9E, and Hex
#0D7638 is the 20% darker color. If the color is saturated by 10%, you get
#3BAF6A. If the color is desaturated by 10%, the color
#45A36C is obtained.