The hex color #43cc00 is a light color. The web-safe version is Hex
#33CC00. A complementary color is
#BC33FF. The grayscale version is
#5A5A5A. A 20% lighter version of the original color is
#76FF33, and Hex
#109900 is the 20% darker color. If the color is saturated by 10%, you get
#41D700. If the color is desaturated by 10%, the color
#45C109 is obtained.