Hex #66a277 or rgb(102,162,119) in RGB space is the tint of bluish green. It has hue angle of 137.00 degrees, value = 64 and saturation = 37. #66a277 can be obtained by mixing 4 colors: 3 drops of yellow, 4 drops of cyan, 3 drops of white, 5 drops of black.
Nearest safe hex - #669966. Below you can see the block with #66a277 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66a277 to the mixer and play with it.