Hex #627a4f or rgb(98,122,79) in RGB space is the tint of olive. It has hue angle of 93.49 degrees, value = 48 and saturation = 35. #627a4f can be obtained by mixing 4 colors: 2 drops of yellow, 3 drops of magenta, 3 drops of blue, 5 drops of green.
Nearest safe hex - #666666. Below you can see the block with #627a4f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #627a4f to the mixer and play with it.