The hex color #73f9c3 is a light color. The web-safe version is Hex
#66FFCC. A complementary color is
#8C063C. The grayscale version is
#BABABA. A 20% lighter version of the original color is
#A6FFF6, and Hex
#40C690 is the 20% darker color. If the color is saturated by 10%, you get
#6CFFC4. If the color is desaturated by 10%, the color
#7AF3C2 is obtained.