Hex #308d85 or rgb(48,141,133) in RGB space is the tint of cyan. It has hue angle of 174.84 degrees, value = 55 and saturation = 66. #308d85 can be obtained by mixing 4 colors: 3 drops of yellow, 5 drops of blue, 5 drops of cyan, 3 drops of black.
Nearest safe hex - #339999. Below you can see the block with #308d85 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #308d85 to the mixer and play with it.