Hex #15948e or rgb(21,148,142) in RGB space is the tint of cyan. It has hue angle of 177.17 degrees, value = 58 and saturation = 86. #15948e can be obtained by mixing 4 colors: 1 drop of red, 4 drops of blue, 4 drops of cyan, 3 drops of green.
Nearest safe hex - #009999. Below you can see the block with #15948e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #15948e to the mixer and play with it.