Hex #12a286 or rgb(18,162,134) in RGB space is the tint of greenish cian. It has hue angle of 168.33 degrees, value = 64 and saturation = 89. #12a286 can be obtained by mixing 4 colors: 1 drop of yellow, 5 drops of blue, 4 drops of cyan, 4 drops of green.
Nearest safe hex - #009999. Below you can see the block with #12a286 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #12a286 to the mixer and play with it.