The hex color #40cd4c is a light color. The web-safe version is Hex
#33CC33. A complementary color is
#BF32B3. The grayscale version is
#737373. A 20% lighter version of the original color is
#73FF7F, and Hex
#0D9A19 is the 20% darker color. If the color is saturated by 10%, you get
#3BD648. If the color is desaturated by 10%, the color
#45C450 is obtained.