The hex color #42d38a is a light color. The web-safe version is Hex
#33CC99. A complementary color is
#BD2C75. The grayscale version is
#8A8A8A. A 20% lighter version of the original color is
#75FFBD, and Hex
#0FA057 is the 20% darker color. If the color is saturated by 10%, you get
#3BDA8A. If the color is desaturated by 10%, the color
#49CC8A is obtained.