Hex #558200 or rgb(85,130,0) in RGB space is the tint of lime. It has hue angle of 80.77 degrees, value = 51 and saturation = 100. #558200 can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of red, 3 drops of green, 1 drop of black.
Nearest safe hex - #669900. Below you can see the block with #558200 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #558200 to the mixer and play with it.