Hex #003b40 or rgb(0,59,64) in RGB space is the tint of cyan. It has hue angle of 184.69 degrees, value = 25 and saturation = 100. #003b40 can be obtained by mixing 2 colors: 1 drop of cyan, 3 drops of black.
Nearest safe hex - #003333. Below you can see the block with #003b40 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #003b40 to the mixer and play with it.