The hex color #3bbba5 is a light color. The web-safe version is Hex
#33CC99. A complementary color is
#C4445A. The grayscale version is
#898989. A 20% lighter version of the original color is
#6EEED8, and Hex
#088872 is the 20% darker color. If the color is saturated by 10%, you get
#33C0A8. If the color is desaturated by 10%, the color
#43B6A2 is obtained.