Hex #99951a or rgb(153,149,26) in RGB space is the tint of yellow. It has hue angle of 58.11 degrees, value = 60 and saturation = 83. #99951a can be obtained by mixing 4 colors: 3 drops of yellow, 3 drops of red, 1 drop of cyan, 3 drops of green.
Nearest safe hex - #999933. Below you can see the block with #99951a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99951a to the mixer and play with it.