Hex #338e91 or rgb(51,142,145) in RGB space is the tint of cyan. It has hue angle of 181.91 degrees, value = 57 and saturation = 65. #338e91 can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of magenta, 5 drops of cyan, 3 drops of black.
Nearest safe hex - #339999. Below you can see the block with #338e91 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #338e91 to the mixer and play with it.