The hex color #04a5fb is a dark color. The web-safe version is Hex
#0099FF. A complementary color is
#FB5A04. The grayscale version is
#8C8C8C. A 20% lighter version of the original color is
#37D8FF, and Hex
#0072C8 is the 20% darker color. If the color is saturated by 10%, you get
#00A8FF. If the color is desaturated by 10%, the color
#12A3F0 is obtained.