Hex #40b095 or rgb(64,176,149) in RGB space is the tint of greenish cian. It has hue angle of 165.54 degrees, value = 69 and saturation = 64. #40b095 can be obtained by mixing 4 colors: 3 drops of yellow, 3 drops of blue, 5 drops of cyan, 1 drop of black.
Nearest safe hex - #339999. Below you can see the block with #40b095 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40b095 to the mixer and play with it.