Hex #66c65e or rgb(102,198,94) in RGB space is the tint of green. It has hue angle of 115.38 degrees, value = 78 and saturation = 53. #66c65e can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of blue, 5 drops of green, 3 drops of white.
Nearest safe hex - #66cc66. Below you can see the block with #66c65e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66c65e to the mixer and play with it.