Hex #40a08f or rgb(64,160,143) in RGB space is the tint of greenish cian. It has hue angle of 169.38 degrees, value = 63 and saturation = 60. #40a08f can be obtained by mixing 4 colors: 5 drops of cyan, 2 drops of green, 4 drops of white, 5 drops of black.
Nearest safe hex - #339999. Below you can see the block with #40a08f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40a08f to the mixer and play with it.