Hex #e3b639 or rgb(227,182,57) in RGB space is the tint of khaki. It has hue angle of 44.12 degrees, value = 89 and saturation = 75. #e3b639 can be obtained by mixing 4 colors: 4 drops of yellow, 2 drops of red, 1 drop of green, 2 drops of white.
Nearest safe hex - #cccc33. Below you can see the block with #e3b639 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #e3b639 to the mixer and play with it.