Hex #005379 or rgb(0,83,121) in RGB space is the tint of bluish cian. It has hue angle of 198.84 degrees, value = 47 and saturation = 100. #005379 can be obtained by mixing 3 colors: 4 drops of blue, 3 drops of cyan, 5 drops of black.
Nearest safe hex - #006666. Below you can see the block with #005379 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #005379 to the mixer and play with it.