Hex #5bb255 or rgb(91,178,85) in RGB space is the tint of green. It has hue angle of 116.13 degrees, value = 70 and saturation = 52. #5bb255 can be obtained by mixing 4 colors: 5 drops of yellow, 4 drops of blue, 2 drops of cyan, 3 drops of green.
Nearest safe hex - #669966. Below you can see the block with #5bb255 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5bb255 to the mixer and play with it.