Hex #4e9daa or rgb(78,157,170) in RGB space is the tint of bluish cian. It has hue angle of 188.48 degrees, value = 67 and saturation = 54. #4e9daa can be obtained by mixing 4 colors: 1 drop of blue, 4 drops of cyan, 4 drops of white, 4 drops of black.
Nearest safe hex - #669999. Below you can see the block with #4e9daa color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #4e9daa to the mixer and play with it.