Hex #5b9912 or rgb(91,153,18) in RGB space is the tint of olive. It has hue angle of 87.56 degrees, value = 60 and saturation = 88. #5b9912 can be obtained by mixing 4 colors: 5 drops of yellow, 1 drop of cyan, 4 drops of green, 4 drops of black.
Nearest safe hex - #669900. Below you can see the block with #5b9912 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b9912 to the mixer and play with it.