The hex color #83c8a3 is a light color. The web-safe version is Hex
#99CC99. A complementary color is
#7C375C. The grayscale version is
#A5A5A5. A 20% lighter version of the original color is
#B6FBD6, and Hex
#509570 is the 20% darker color. If the color is saturated by 10%, you get
#80CCA3. If the color is desaturated by 10%, the color
#86C4A3 is obtained.