Hex #509165 or rgb(80,145,101) in RGB space is the tint of bluish green. It has hue angle of 139.38 degrees, value = 57 and saturation = 45. #509165 can be obtained by mixing 4 colors: 2 drops of blue, 5 drops of green, 5 drops of white, 4 drops of black.
Nearest safe hex - #669966. Below you can see the block with #509165 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #509165 to the mixer and play with it.