Hex #607940 or rgb(96,121,64) in RGB space is the tint of olive. It has hue angle of 86.32 degrees, value = 47 and saturation = 47. #607940 can be obtained by mixing 4 colors: 2 drops of yellow, 1 drop of cyan, 1 drop of white, 4 drops of black.
Nearest safe hex - #666633. Below you can see the block with #607940 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #607940 to the mixer and play with it.