Hex #55904e or rgb(85,144,78) in RGB space is the tint of green. It has hue angle of 113.64 degrees, value = 56 and saturation = 46. #55904e can be obtained by mixing 4 colors: 4 drops of yellow, 1 drop of blue, 3 drops of cyan, 4 drops of black.
Nearest safe hex - #669966. Below you can see the block with #55904e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55904e to the mixer and play with it.