The hex color #18bcc1 is a light color. The web-safe version is Hex
#00CCCC. A complementary color is
#E7433E. The grayscale version is
#878787. A 20% lighter version of the original color is
#4BEFF4, and Hex
#00898E is the 20% darker color. If the color is saturated by 10%, you get
#0DC1C7. If the color is desaturated by 10%, the color
#23B7BB is obtained.