Hex #88a4a5 or rgb(136,164,165) in RGB space is the tint of cyan. It has hue angle of 182.07 degrees, value = 65 and saturation = 18. #88a4a5 can be obtained by mixing 4 colors: 4 drops of magenta, 3 drops of cyan, 4 drops of green, 4 drops of white.
Nearest safe hex - #999999. Below you can see the block with #88a4a5 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #88a4a5 to the mixer and play with it.