The hex color #4ddb2c is a light color. The web-safe version is Hex
#66CC33. A complementary color is
#B224D3. The grayscale version is
#717171. A 20% lighter version of the original color is
#80FF5F, and Hex
#1AA800 is the 20% darker color. If the color is saturated by 10%, you get
#49E625. If the color is desaturated by 10%, the color
#51D033 is obtained.