Hex #00514c or rgb(0,81,76) in RGB space is the tint of cyan. It has hue angle of 176.30 degrees, value = 32 and saturation = 100. #00514c can be obtained by mixing 4 colors: 1 drop of blue, 2 drops of cyan, 1 drop of green, 5 drops of black.
Nearest safe hex - #006633. Below you can see the block with #00514c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #00514c to the mixer and play with it.