Hex #12af9e or rgb(18,175,158) in RGB space is the tint of cyan. It has hue angle of 173.50 degrees, value = 69 and saturation = 90. #12af9e can be obtained by mixing 4 colors: 4 drops of blue, 5 drops of cyan, 4 drops of green, 1 drop of white.
Nearest safe hex - #009999. Below you can see the block with #12af9e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #12af9e to the mixer and play with it.