The hex color #83c6d5 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#7C392A. The grayscale version is
#B5B5B5. A 20% lighter version of the original color is
#B6F9FF, and Hex
#5093A2 is the 20% darker color. If the color is saturated by 10%, you get
#7EC8D8. If the color is desaturated by 10%, the color
#88C4D2 is obtained.