Hex #30b2b5 or rgb(48,178,181) in RGB space is the tint of cyan. It has hue angle of 181.35 degrees, value = 71 and saturation = 73. #30b2b5 can be obtained by mixing 4 colors: 5 drops of blue, 5 drops of cyan, 3 drops of green, 3 drops of white.
Nearest safe hex - #3399cc. Below you can see the block with #30b2b5 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #30b2b5 to the mixer and play with it.