Hex #15511d or rgb(21,81,29) in RGB space is the tint of bluish green. It has hue angle of 128.00 degrees, value = 32 and saturation = 74. #15511d can be obtained by mixing 4 colors: 1 drop of magenta, 1 drop of blue, 5 drops of green, 5 drops of black.
Nearest safe hex - #006633. Below you can see the block with #15511d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #15511d to the mixer and play with it.