The hex color #3bb7c7 is a light color. The web-safe version is Hex
#33CCCC. A complementary color is
#C44838. The grayscale version is
#939393. A 20% lighter version of the original color is
#6EEAFA, and Hex
#088494 is the 20% darker color. If the color is saturated by 10%, you get
#32BBCC. If the color is desaturated by 10%, the color
#44B3C2 is obtained.