Hex #8b8e5d or rgb(139,142,93) in RGB space is the tint of yellow. It has hue angle of 63.67 degrees, value = 56 and saturation = 35. #8b8e5d can be obtained by mixing 4 colors: 2 drops of red, 3 drops of green, 4 drops of white, 2 drops of black.
Nearest safe hex - #999966. Below you can see the block with #8b8e5d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #8b8e5d to the mixer and play with it.