Hex #40a750 or rgb(64,167,80) in RGB space is the tint of bluish green. It has hue angle of 129.32 degrees, value = 65 and saturation = 62. #40a750 can be obtained by mixing 4 colors: 4 drops of yellow, 5 drops of cyan, 3 drops of green, 4 drops of black.
Nearest safe hex - #339966. Below you can see the block with #40a750 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40a750 to the mixer and play with it.