The hex color #3DF9AC is a light color. The web-safe version is Hex
#33FF99. A complementary color is
#C20653. The grayscale version is
#A1A1A1. A 20% lighter version of the original color is
#70FFDF, and Hex
#0AC679 is the 20% darker color. If the color is saturated by 10%, you get
#33FFAD. If the color is desaturated by 10%, the color
#47F0AB is obtained.