Hex #554e2b or rgb(85,78,43) in RGB space is the tint of khaki. It has hue angle of 50.00 degrees, value = 33 and saturation = 49. #554e2b can be obtained by mixing 4 colors: 4 drops of red, 3 drops of blue, 4 drops of green, 1 drop of black.
Nearest safe hex - #666633. Below you can see the block with #554e2b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #554e2b to the mixer and play with it.