Hex #66ae11 or rgb(102,174,17) in RGB space is the tint of olive. It has hue angle of 87.52 degrees, value = 68 and saturation = 90. #66ae11 can be obtained by mixing 4 colors: 4 drops of yellow, 1 drop of blue, 4 drops of green, 1 drop of black.
Nearest safe hex - #669900. Below you can see the block with #66ae11 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66ae11 to the mixer and play with it.