Hex #145976 or rgb(20,89,118) in RGB space is the tint of bluish cian. It has hue angle of 197.76 degrees, value = 46 and saturation = 83. #145976 can be obtained by mixing 4 colors: 1 drop of red, 3 drops of blue, 4 drops of cyan, 5 drops of black.
Nearest safe hex - #006666. Below you can see the block with #145976 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #145976 to the mixer and play with it.