The hex color #3dc59c is a light color. The web-safe version is Hex
#33CC99. A complementary color is
#C23A63. The grayscale version is
#8A8A8A. A 20% lighter version of the original color is
#70F8CF, and Hex
#0A9269 is the 20% darker color. If the color is saturated by 10%, you get
#35CB9E. If the color is desaturated by 10%, the color
#45BF9A is obtained.