Hex #40ab9f or rgb(64,171,159) in RGB space is the tint of cyan. It has hue angle of 173.27 degrees, value = 67 and saturation = 63. #40ab9f can be obtained by mixing 3 colors: 2 drops of red, 5 drops of cyan, 1 drop of green.
Nearest safe hex - #339999. Below you can see the block with #40ab9f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40ab9f to the mixer and play with it.