The hex color #3cc9cb is a light color. The web-safe version is Hex
#33CCCC. A complementary color is
#C33634. The grayscale version is
#9B9B9B. A 20% lighter version of the original color is
#6FFCFE, and Hex
#099698 is the 20% darker color. If the color is saturated by 10%, you get
#33CED0. If the color is desaturated by 10%, the color
#45C4C6 is obtained.