Hex #00514d or rgb(0,81,77) in RGB space is the tint of cyan. It has hue angle of 177.04 degrees, value = 32 and saturation = 100. #00514d can be obtained by mixing 4 colors: 3 drops of blue, 1 drop of cyan, 2 drops of green, 4 drops of black.
Nearest safe hex - #006666. Below you can see the block with #00514d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #00514d to the mixer and play with it.