The hex color #42cbb4 is a light color. The web-safe version is Hex
#33CCCC. A complementary color is
#BD344B. The grayscale version is
#969696. A 20% lighter version of the original color is
#75FEE7, and Hex
#0F9881 is the 20% darker color. If the color is saturated by 10%, you get
#3AD0B7. If the color is desaturated by 10%, the color
#4AC6B1 is obtained.