Hex #004055 or rgb(0,64,85) in RGB space is the tint of bluish cian. It has hue angle of 194.82 degrees, value = 33 and saturation = 100. #004055 can be obtained by mixing 4 colors: 4 drops of blue, 1 drop of cyan, 1 drop of green, 5 drops of black.
Nearest safe hex - #003366. Below you can see the block with #004055 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #004055 to the mixer and play with it.