Hex #40c240 or rgb(64,194,64) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 76 and saturation = 67. #40c240 can be obtained by mixing 4 colors: 3 drops of yellow, 3 drops of cyan, 5 drops of green, 1 drop of black.
Nearest safe hex - #33cc33. Below you can see the block with #40c240 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40c240 to the mixer and play with it.