Hex #668750 or rgb(102,135,80) in RGB space is the tint of olive. It has hue angle of 96.00 degrees, value = 53 and saturation = 41. #668750 can be obtained by mixing 4 colors: 4 drops of yellow, 2 drops of magenta, 5 drops of blue, 4 drops of green.
Nearest safe hex - #669966. Below you can see the block with #668750 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #668750 to the mixer and play with it.