Hex #40c4b0 or rgb(64,196,176) in RGB space is the tint of greenish cian. It has hue angle of 170.91 degrees, value = 77 and saturation = 67. #40c4b0 can be obtained by mixing 4 colors: 3 drops of blue, 5 drops of cyan, 4 drops of green, 4 drops of white.
Nearest safe hex - #33cc99. Below you can see the block with #40c4b0 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40c4b0 to the mixer and play with it.