Hex #1c818e or rgb(28,129,142) in RGB space is the tint of cyan. It has hue angle of 186.84 degrees, value = 56 and saturation = 80. #1c818e can be obtained by mixing 4 colors: 1 drop of yellow, 3 drops of blue, 3 drops of cyan, 2 drops of black.
Nearest safe hex - #339999. Below you can see the block with #1c818e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #1c818e to the mixer and play with it.