The hex color #42a7cc is a light color. The web-safe version is Hex
#3399CC. A complementary color is
#BD5833. The grayscale version is
#929292. A 20% lighter version of the original color is
#75DAFF, and Hex
#0F7499 is the 20% darker color. If the color is saturated by 10%, you get
#3AA9D2. If the color is desaturated by 10%, the color
#4AA5C6 is obtained.