Hex #5089a0 or rgb(80,137,160) in RGB space is the tint of bluish cian. It has hue angle of 197.25 degrees, value = 63 and saturation = 50. #5089a0 can be obtained by mixing 4 colors: 3 drops of blue, 3 drops of cyan, 5 drops of white, 5 drops of black.
Nearest safe hex - #669999. Below you can see the block with #5089a0 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5089a0 to the mixer and play with it.