The hex color #42f8bb is a light color. The web-safe version is Hex
#33FFCC. A complementary color is
#BD0744. The grayscale version is
#A7A7A7. A 20% lighter version of the original color is
#75FFEE, and Hex
#0FC588 is the 20% darker color. If the color is saturated by 10%, you get
#38FFBD. If the color is desaturated by 10%, the color
#4CF0B9 is obtained.