Hex #558115 or rgb(85,129,21) in RGB space is the tint of olive. It has hue angle of 84.44 degrees, value = 51 and saturation = 84. #558115 can be obtained by mixing 4 colors: 4 drops of yellow, 1 drop of cyan, 2 drops of green, 5 drops of black.
Nearest safe hex - #669900. Below you can see the block with #558115 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #558115 to the mixer and play with it.