Hex #158840 or rgb(21,136,64) in RGB space is the tint of bluish green. It has hue angle of 142.43 degrees, value = 53 and saturation = 85. #158840 can be obtained by mixing 4 colors: 2 drops of cyan, 5 drops of green, 1 drop of white, 4 drops of black.
Nearest safe hex - #009933. Below you can see the block with #158840 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #158840 to the mixer and play with it.