Hex #005f7b or rgb(0,95,123) in RGB space is the tint of bluish cian. It has hue angle of 193.66 degrees, value = 48 and saturation = 100. #005f7b can be obtained by mixing 3 colors: 2 drops of blue, 3 drops of cyan, 4 drops of black.
Nearest safe hex - #006666. Below you can see the block with #005f7b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #005f7b to the mixer and play with it.