Hex #55420e or rgb(85,66,14) in RGB space is the tint of khaki. It has hue angle of 43.94 degrees, value = 33 and saturation = 84. #55420e can be obtained by mixing 4 colors: 4 drops of red, 1 drop of blue, 4 drops of green, 3 drops of black.
Nearest safe hex - #663300. Below you can see the block with #55420e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55420e to the mixer and play with it.