Hex #66ad6f or rgb(102,173,111) in RGB space is the tint of bluish green. It has hue angle of 127.61 degrees, value = 68 and saturation = 41. #66ad6f can be obtained by mixing 4 colors: 2 drops of yellow, 2 drops of magenta, 3 drops of cyan, 3 drops of green.
Nearest safe hex - #669966. Below you can see the block with #66ad6f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66ad6f to the mixer and play with it.