The hex color #4ec21c is a light color. The web-safe version is Hex
#66CC33. A complementary color is
#B13DE3. The grayscale version is
#646464. A 20% lighter version of the original color is
#81F54F, and Hex
#1B8F00 is the 20% darker color. If the color is saturated by 10%, you get
#4CCB15. If the color is desaturated by 10%, the color
#50B923 is obtained.