The hex color #83c7e4 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#7C381B. The grayscale version is
#BABABA. A 20% lighter version of the original color is
#B6FAFF, and Hex
#5094B1 is the 20% darker color. If the color is saturated by 10%, you get
#7EC8E8. If the color is desaturated by 10%, the color
#89C6E0 is obtained.