The hex color #4da4fe is a light color. The web-safe version is Hex
#6699FF. A complementary color is
#B25B01. The grayscale version is
#A5A5A5. A 20% lighter version of the original color is
#80D7FF, and Hex
#1A71CB is the 20% darker color. If the color is saturated by 10%, you get
#44A4FF. If the color is desaturated by 10%, the color
#56A4F5 is obtained.