The hex color #3cc4e3 is a light color. The web-safe version is Hex
#33CCCC. A complementary color is
#C33B1C. The grayscale version is
#A1A1A1. A 20% lighter version of the original color is
#6FF7FF, and Hex
#0991B0 is the 20% darker color. If the color is saturated by 10%, you get
#32C8EA. If the color is desaturated by 10%, the color
#46C1DC is obtained.