Hex #006b8a or rgb(0,107,138) in RGB space is the tint of bluish cian. It has hue angle of 193.48 degrees, value = 54 and saturation = 100. #006b8a can be obtained by mixing 3 colors: 2 drops of blue, 3 drops of cyan, 3 drops of black.
Nearest safe hex - #006699. Below you can see the block with #006b8a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #006b8a to the mixer and play with it.