Hex #a4a686 or rgb(164,166,134) in RGB space is the tint of yellow. It has hue angle of 63.75 degrees, value = 65 and saturation = 19. #a4a686 can be obtained by mixing 4 colors: 4 drops of yellow, 1 drop of red, 5 drops of blue, 4 drops of white.
Nearest safe hex - #999999. Below you can see the block with #a4a686 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #a4a686 to the mixer and play with it.