Hex #40a355 or rgb(64,163,85) in RGB space is the tint of bluish green. It has hue angle of 132.73 degrees, value = 64 and saturation = 61. #40a355 can be obtained by mixing 4 colors: 1 drop of blue, 4 drops of green, 2 drops of white, 1 drop of black.
Nearest safe hex - #339966. Below you can see the block with #40a355 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40a355 to the mixer and play with it.