Hex #5b9f18 or rgb(91,159,24) in RGB space is the tint of olive. It has hue angle of 90.22 degrees, value = 62 and saturation = 85. #5b9f18 can be obtained by mixing 4 colors: 5 drops of yellow, 2 drops of blue, 5 drops of green, 2 drops of black.
Nearest safe hex - #669900. Below you can see the block with #5b9f18 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b9f18 to the mixer and play with it.