Hex #307a5b or rgb(48,122,91) in RGB space is the tint of teal. It has hue angle of 154.86 degrees, value = 48 and saturation = 61. #307a5b can be obtained by mixing 4 colors: 4 drops of blue, 5 drops of green, 3 drops of white, 4 drops of black.
Nearest safe hex - #336666. Below you can see the block with #307a5b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #307a5b to the mixer and play with it.