The hex color #18c8fc is a light color. The web-safe version is Hex
#00CCFF. A complementary color is
#E73703. The grayscale version is
#9F9F9F. A 20% lighter version of the original color is
#4BFBFF, and Hex
#0095C9 is the 20% darker color. If the color is saturated by 10%, you get
#0BCCFF. If the color is desaturated by 10%, the color
#25C4F3 is obtained.