Hex #00838c or rgb(0,131,140) in RGB space is the tint of cyan. It has hue angle of 183.86 degrees, value = 55 and saturation = 100. #00838c can be obtained by mixing 4 colors: 4 drops of blue, 5 drops of cyan, 2 drops of green, 3 drops of black.
Nearest safe hex - #009999. Below you can see the block with #00838c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #00838c to the mixer and play with it.