The hex color #83c0c5 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#7C3F3A. The grayscale version is
#ADADAD. A 20% lighter version of the original color is
#B6F3F8, and Hex
#508D92 is the 20% darker color. If the color is saturated by 10%, you get
#7FC2C7. If the color is desaturated by 10%, the color
#87BEC3 is obtained.