The hex color #42b34d is a light color. The web-safe version is Hex
#33CC66. A complementary color is
#BD4CB2. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#75E680, and Hex
#0F801A is the 20% darker color. If the color is saturated by 10%, you get
#3EBA4A. If the color is desaturated by 10%, the color
#46AC50 is obtained.