Hex #554426 or rgb(85,68,38) in RGB space is the tint of khaki. It has hue angle of 38.30 degrees, value = 33 and saturation = 55. #554426 can be obtained by mixing 4 colors: 2 drops of yellow, 1 drop of red, 2 drops of blue, 4 drops of black.
Nearest safe hex - #663333. Below you can see the block with #554426 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #554426 to the mixer and play with it.