Hex #66b483 or rgb(102,180,131) in RGB space is the tint of bluish green. It has hue angle of 142.31 degrees, value = 71 and saturation = 43. #66b483 can be obtained by mixing 4 colors: 1 drop of yellow, 4 drops of blue, 5 drops of green, 5 drops of white.
Nearest safe hex - #66cc99. Below you can see the block with #66b483 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66b483 to the mixer and play with it.