Hex #89b8b1 or rgb(137,184,177) in RGB space is the tint of greenish cian. It has hue angle of 171.06 degrees, value = 72 and saturation = 26. #89b8b1 can be obtained by mixing 4 colors: 3 drops of red, 5 drops of cyan, 1 drop of green, 4 drops of white.
Nearest safe hex - #99cc99. Below you can see the block with #89b8b1 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #89b8b1 to the mixer and play with it.