Hex #40c89f or rgb(64,200,159) in RGB space is the tint of greenish cian. It has hue angle of 161.91 degrees, value = 78 and saturation = 68. #40c89f can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of red, 5 drops of cyan, 1 drop of green.
Nearest safe hex - #33cc99. Below you can see the block with #40c89f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40c89f to the mixer and play with it.