Hex #89b4b7 or rgb(137,180,183) in RGB space is the tint of cyan. It has hue angle of 183.91 degrees, value = 72 and saturation = 25. #89b4b7 can be obtained by mixing 4 colors: 2 drops of yellow, 5 drops of blue, 1 drop of cyan, 5 drops of white.
Nearest safe hex - #99cccc. Below you can see the block with #89b4b7 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #89b4b7 to the mixer and play with it.