The hex color #42cad3 is a light color. The web-safe version is Hex
#33CCCC. A complementary color is
#BD352C. The grayscale version is
#A0A0A0. A 20% lighter version of the original color is
#75FDFF, and Hex
#0F97A0 is the 20% darker color. If the color is saturated by 10%, you get
#39CED8. If the color is desaturated by 10%, the color
#4BC6CE is obtained.