Hex #00567b or rgb(0,86,123) in RGB space is the tint of bluish cian. It has hue angle of 198.05 degrees, value = 48 and saturation = 100. #00567b can be obtained by mixing 4 colors: 5 drops of blue, 1 drop of cyan, 1 drop of green, 2 drops of black.
Nearest safe hex - #006666. Below you can see the block with #00567b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #00567b to the mixer and play with it.