The hex color #42c57a is a light color. The web-safe version is Hex
#33CC66. A complementary color is
#BD3A85. The grayscale version is
#808080. A 20% lighter version of the original color is
#75F8AD, and Hex
#0F9247 is the 20% darker color. If the color is saturated by 10%, you get
#3CCC79. If the color is desaturated by 10%, the color
#48BE7B is obtained.