The hex color #84d0cf is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#7B2F30. The grayscale version is
#B6B6B6. A 20% lighter version of the original color is
#B7FFFF, and Hex
#519D9C is the 20% darker color. If the color is saturated by 10%, you get
#7FD3D1. If the color is desaturated by 10%, the color
#89CDCD is obtained.