The hex color #428dfa is a light color. The web-safe version is Hex
#3399FF. A complementary color is
#BD7205. The grayscale version is
#989898. A 20% lighter version of the original color is
#75C0FF, and Hex
#0F5AC7 is the 20% darker color. If the color is saturated by 10%, you get
#398CFF. If the color is desaturated by 10%, the color
#4B8EF0 is obtained.