Hex #40b660 or rgb(64,182,96) in RGB space is the tint of bluish green. It has hue angle of 136.27 degrees, value = 71 and saturation = 65. #40b660 can be obtained by mixing 4 colors: 1 drop of red, 2 drops of cyan, 4 drops of green, 1 drop of white.
Nearest safe hex - #33cc66. Below you can see the block with #40b660 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40b660 to the mixer and play with it.