Hex #40a195 or rgb(64,161,149) in RGB space is the tint of cyan. It has hue angle of 172.58 degrees, value = 63 and saturation = 60. #40a195 can be obtained by mixing 4 colors: 1 drop of yellow, 5 drops of cyan, 2 drops of white, 4 drops of black.
Nearest safe hex - #339999. Below you can see the block with #40a195 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40a195 to the mixer and play with it.