The hex color #3dbb98 is a light color. The web-safe version is Hex
#33CC99. A complementary color is
#C24467. The grayscale version is
#858585. A 20% lighter version of the original color is
#70EECB, and Hex
#0A8865 is the 20% darker color. If the color is saturated by 10%, you get
#36C09A. If the color is desaturated by 10%, the color
#44B696 is obtained.