The hex color #429afc is a light color. The web-safe version is Hex
#3399FF. A complementary color is
#BD6503. The grayscale version is
#9D9D9D. A 20% lighter version of the original color is
#75CDFF, and Hex
#0F67C9 is the 20% darker color. If the color is saturated by 10%, you get
#399AFF. If the color is desaturated by 10%, the color
#4B9AF3 is obtained.