Hex #628a4e or rgb(98,138,78) in RGB space is the tint of grass green. It has hue angle of 100.00 degrees, value = 54 and saturation = 43. #628a4e can be obtained by mixing 4 colors: 1 drop of yellow, 3 drops of green, 4 drops of white, 5 drops of black.
Nearest safe hex - #669966. Below you can see the block with #628a4e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #628a4e to the mixer and play with it.