The hex color #3da79a is a light color. The web-safe version is Hex
#339999. A complementary color is
#C25865. The grayscale version is
#7F7F7F. A 20% lighter version of the original color is
#70DACD, and Hex
#0A7467 is the 20% darker color. If the color is saturated by 10%, you get
#36AB9D. If the color is desaturated by 10%, the color
#44A397 is obtained.