The hex color #40b59e is a light color. The web-safe version is Hex
#33CC99. A complementary color is
#BF4A61. The grayscale version is
#868686. A 20% lighter version of the original color is
#73E8D1, and Hex
#0D826B is the 20% darker color. If the color is saturated by 10%, you get
#39BAA0. If the color is desaturated by 10%, the color
#47B09C is obtained.