Hex #558d11 or rgb(85,141,17) in RGB space is the tint of olive. It has hue angle of 87.10 degrees, value = 55 and saturation = 88. #558d11 can be obtained by mixing 4 colors: 4 drops of yellow, 5 drops of green, 1 drop of white, 5 drops of black.
Nearest safe hex - #669900. Below you can see the block with #558d11 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #558d11 to the mixer and play with it.