The hex color #3cc4f5 is a light color. The web-safe version is Hex
#33CCFF. A complementary color is
#C33B0A. The grayscale version is
#A7A7A7. A 20% lighter version of the original color is
#6FF7FF, and Hex
#0991C2 is the 20% darker color. If the color is saturated by 10%, you get
#31C7FD. If the color is desaturated by 10%, the color
#47C1ED is obtained.