Hex #66ca77 or rgb(102,202,119) in RGB space is the tint of bluish green. It has hue angle of 130.20 degrees, value = 79 and saturation = 50. #66ca77 can be obtained by mixing 4 colors: 3 drops of yellow, 1 drop of magenta, 4 drops of cyan, 2 drops of green.
Nearest safe hex - #66cc66. Below you can see the block with #66ca77 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66ca77 to the mixer and play with it.