The hex color #3CB5E5 is a light color. The web-safe version is Hex
#33CCCC. A complementary color is
#C34A1A. The grayscale version is
#9D9D9D. A 20% lighter version of the original color is
#6FE8FF, and Hex
#0982B2 is the 20% darker color. If the color is saturated by 10%, you get
#32B7EC. If the color is desaturated by 10%, the color
#46B3DE is obtained.