Hex #99c7cc or rgb(153,199,204) in RGB space is the tint of cyan. It has hue angle of 185.88 degrees, value = 80 and saturation = 25. #99c7cc can be obtained by mixing 4 colors: 1 drop of red, 3 drops of cyan, 5 drops of white, 1 drop of black.
Nearest safe hex - #99cccc. Below you can see the block with #99c7cc color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99c7cc to the mixer and play with it.