Hex #005c80 or rgb(0,92,128) in RGB space is the tint of bluish cian. It has hue angle of 196.88 degrees, value = 50 and saturation = 100. #005c80 can be obtained by mixing 3 colors: 3 drops of blue, 3 drops of cyan, 4 drops of black.
Nearest safe hex - #006699. Below you can see the block with #005c80 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #005c80 to the mixer and play with it.