Hex #30b59a or rgb(48,181,154) in RGB space is the tint of greenish cian. It has hue angle of 167.82 degrees, value = 71 and saturation = 73. #30b59a can be obtained by mixing 4 colors: 4 drops of blue, 4 drops of cyan, 5 drops of green, 3 drops of white.
Nearest safe hex - #33cc99. Below you can see the block with #30b59a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #30b59a to the mixer and play with it.