The hex color #548ddc is a light color. The web-safe version is Hex
#6699CC. A complementary color is
#AB7223. The grayscale version is
#949494. A 20% lighter version of the original color is
#87C0FF, and Hex
#215AA9 is the 20% darker color. If the color is saturated by 10%, you get
#4E8CE3. If the color is desaturated by 10%, the color
#5A8ED5 is obtained.