Hex #5b9b6d or rgb(91,155,109) in RGB space is the tint of bluish green. It has hue angle of 136.88 degrees, value = 61 and saturation = 41. #5b9b6d can be obtained by mixing 4 colors: 4 drops of red, 5 drops of cyan, 4 drops of green, 1 drop of white.
Nearest safe hex - #669966. Below you can see the block with #5b9b6d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b9b6d to the mixer and play with it.