Hex #40b0a5 or rgb(64,176,165) in RGB space is the tint of cyan. It has hue angle of 174.11 degrees, value = 69 and saturation = 64. #40b0a5 can be obtained by mixing 4 colors: 5 drops of blue, 3 drops of cyan, 4 drops of green, 4 drops of white.
Nearest safe hex - #339999. Below you can see the block with #40b0a5 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40b0a5 to the mixer and play with it.