Hex #4e8690 or rgb(78,134,144) in RGB space is the tint of bluish cian. It has hue angle of 189.09 degrees, value = 56 and saturation = 46. #4e8690 can be obtained by mixing 4 colors: 5 drops of blue, 2 drops of green, 4 drops of white, 2 drops of black.
Nearest safe hex - #669999. Below you can see the block with #4e8690 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #4e8690 to the mixer and play with it.