Hex #55adc1 or rgb(85,173,193) in RGB space is the tint of bluish cian. It has hue angle of 191.11 degrees, value = 76 and saturation = 56. #55adc1 can be obtained by mixing 4 colors: 2 drops of blue, 5 drops of cyan, 5 drops of white, 3 drops of black.
Nearest safe hex - #6699cc. Below you can see the block with #55adc1 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55adc1 to the mixer and play with it.