Hex #554413 or rgb(85,68,19) in RGB space is the tint of khaki. It has hue angle of 44.55 degrees, value = 33 and saturation = 78. #554413 can be obtained by mixing 4 colors: 3 drops of red, 1 drop of blue, 3 drops of green, 2 drops of black.
Nearest safe hex - #663300. Below you can see the block with #554413 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #554413 to the mixer and play with it.