Hex #004f67 or rgb(0,79,103) in RGB space is the tint of bluish cian. It has hue angle of 193.98 degrees, value = 40 and saturation = 100. #004f67 can be obtained by mixing 3 colors: 3 drops of blue, 1 drop of green, 1 drop of black.
Nearest safe hex - #006666. Below you can see the block with #004f67 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #004f67 to the mixer and play with it.