The hex color #34c79f is a light color. The web-safe version is Hex
#33CC99. A complementary color is
#CB3860. The grayscale version is
#898989. A 20% lighter version of the original color is
#67FAD2, and Hex
#01946C is the 20% darker color. If the color is saturated by 10%, you get
#2CCDA1. If the color is desaturated by 10%, the color
#3CC19D is obtained.