The hex color #42b29e is a light color. The web-safe version is Hex
#339999. A complementary color is
#BD4D61. The grayscale version is
#868686. A 20% lighter version of the original color is
#75E5D1, and Hex
#0F7F6B is the 20% darker color. If the color is saturated by 10%, you get
#3BB6A0. If the color is desaturated by 10%, the color
#49AE9C is obtained.