Hex #88a4aa or rgb(136,164,170) in RGB space is the tint of bluish cian. It has hue angle of 190.59 degrees, value = 67 and saturation = 20. #88a4aa can be obtained by mixing 4 colors: 3 drops of red, 5 drops of cyan, 5 drops of white, 2 drops of black.
Nearest safe hex - #999999. Below you can see the block with #88a4aa color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #88a4aa to the mixer and play with it.