Hex #5b5d3d or rgb(91,93,61) in RGB space is the tint of yellow. It has hue angle of 63.75 degrees, value = 36 and saturation = 34. #5b5d3d can be obtained by mixing 4 colors: 4 drops of yellow, 1 drop of red, 5 drops of blue, 4 drops of black.
Nearest safe hex - #666633. Below you can see the block with #5b5d3d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b5d3d to the mixer and play with it.