The hex color #428cc8 is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#BD7337. The grayscale version is
#878787. A 20% lighter version of the original color is
#75BFFB, and Hex
#0F5995 is the 20% darker color. If the color is saturated by 10%, you get
#3B8CCE. If the color is desaturated by 10%, the color
#498CC2 is obtained.