Hex #89cbde or rgb(137,203,222) in RGB space is the tint of bluish cian. It has hue angle of 193.41 degrees, value = 87 and saturation = 38. #89cbde can be obtained by mixing 4 colors: 2 drops of magenta, 5 drops of cyan, 1 drop of green, 5 drops of white.
Nearest safe hex - #99cccc. Below you can see the block with #89cbde color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #89cbde to the mixer and play with it.